GAMM2025

Session

S04: Structural mechanics

S04

8 Apr 2025, 08:30

Lecture and Conference Centre

Conveners

S04: Structural mechanics: S04.01

• Roger Sauer
• Josef Kiendl

S04: Structural mechanics: S04.02

• Josef Kiendl
• Roger Sauer

S04: Structural mechanics: S04.03

• Bartłomiej Łazorczyk
• Roger Sauer

S04: Structural mechanics: S04.04

• Josef Kiendl
• Roger Sauer

S04: Structural mechanics: S04.05

• Jakob Scheidl
• Josef Kiendl

S04: Structural mechanics: S04.06

• Yury Vetyukov
• Josef Kiendl

S04: Structural mechanics: S04.07

• Roger Sauer
• Bartłomiej Łazorczyk

S04: Structural mechanics: S04.08

• Yury Vetyukov
• Josef Kiendl

S04: Structural mechanics: S04.09

• Paweł Kłosowski
• Roger Sauer

S04: Structural mechanics: S04.10

• Christian Weißenfels
• Josef Kiendl

S04: Structural mechanics: S04.11

• Roger Sauer
• Marcin Adam Zmuda Trzebiatowski

Description

The section will focus on advanced theoretical, numerical and experimental models for the evaluation of the behavior of structures subjected to static and dynamic loads. Innovative materials characterized by high strength, anisotropy and unconventional mechanical responses pose new challenges to the design and the performance of various structural elements such as beams, plates and shells. In particular, structural issues may appear at different scales when materials with an internal architecture are employed. Particularly welcome are linear and nonlinear models and algorithms that address static and dynamic behavior of structures at different scales.

59. Sliding contact of two flexible rods: the role of configurational forces

Yury Vetyukov

08/04/2025, 08:30

The problem of sliding of an elastic rod, partially inserted into a sleeve is attracting more and more researchers’ attention. Dynamics, stability, locomotion are just some of the mechanical phenomena intrinsic to the set-up, whose modelling requires novel analytical and numerical techniques. The behavior of the structure is strongly determined by a configurational force acting between the rod...

60. A Finite Swelling Beam Model with Axial and Radial Diffusion

Juan C. Alzate cobo

08/04/2025, 09:10

The shift towards more sustainable energy sources allows for lattice structures to play an emergent role in the design of future generations of energy storage and conversion devices, such as Li-ion batteries and thermoelectric generators. Particularly, three-dimensional electrode architectures have the potential to provide shorter ion-diffusion paths due to the greater surface-to-volume ratios...

61. Twisted Wire Strands under Coupled Bending and Torsion

Muhannad Hawwash

08/04/2025, 09:30

In automotive applications, cable and cable bundle structures range from single conductors and unshielded twisted cable pairs to wiring harnesses consisting of up to 100 different cable types. All mentioned structures consist of several components, which leads to complex deformation characteristics.

In this work, the mechanical behaviour of simple cable bundle structures is investigated by...

62. Finite element modal analysis of moving bandsaw blades using incremental rod theory with consideration of the pre-stress distribution in the cross section

Jakob Scheidl

08/04/2025, 09:50

Machining operations are susceptible to different kinds of adverse dynamic phenomena. This is especially true for the band sawing process with its slender endless-moving blade that may exhibit forced oscillations, self-excited vibrations, or even torsional flexural buckling under high load magnitudes. Current research primarily focuses on the cutting of metal slabs and is motivated by the need...

63. The effect of boundary rotations and kinematic imperfections on clamped column buckling

Michelle Hedvard

08/04/2025, 10:10

It is well-established that slender columns subjected to compression may fail by buckling and that the introduction of imperfections can significantly reduce the load-bearing capacity. It is therefore necessary to ensure an accurate representation of imperfections to correctly determine the failure loads of slender structures. Imperfections in slender columns are typically modeled using either...

64. A novel mixed-hybrid, higher-order accurate formulation for Kirchhoff–Love shells

Jonas Neumeyer

08/04/2025, 16:30

The numerical treatment of Kirchhoff–Love shells is challenging due to fourth-order derivatives in the displacement-based strong form of the governing mechanical model. For the finite element analysis, the employed shape functions must either meet increased continuity requirements such as those provided in isogeometric analysis or—to continue using standard C0‑continuous elements—mixed...

65. Material reconstruction of heterogeneous isogeometric Kirchhoff-Love shells under various load conditions

Bartłomiej Łazorczyk

08/04/2025, 16:50

The heterogeneity of natural materials is inherent and poses significant challenges in determining their mechanical properties, such as stiffness and density. Since biological samples are often very fragile, special care is necessary to examine them with traditional material testing. Moreover, applying the standard methods might be impossible in in-vivo conditions. These issues cause...

66. Be negative: topology optimization of an existing FE-Model by subtracting the thickness of a shell

Philipp Berendes

08/04/2025, 17:10

Topology optimization is a powerful and common tool in lightweight design. It is possible to use topology optimization to optimize the surface of an existing part by modelling a shell onto an existing FE model and optimizing the thickness of the shell. However, if the goal is to reduce the mass, it is currently necessary to remodel the existing model with smaller dimensions before running this...

67. A polygonal Reissner-Mindlin plate formulation based on the scaled boundary finite element method considering locking effects

Anna Hellers

08/04/2025, 17:30

Recent developments in digitalization and digital fabrication have enforced an increasing complexity of the structural components for the analysis. A promising way to discretize components is to rely on polygonal meshes, as they provide advantages such as simplified mesh generation and highly localized mesh refinement, for example, Voronoi tessellation and quadtree meshes. This calls for...

68. The role of fiber orientation in the analysis and simulation of toroidal hoses under internal pressure

Quirin Hoesch

08/04/2025, 17:50

Hoses for applications in the automotive industry are mainly made of fiber-reinforced rubber, with reinforcements ranging from nylon to steel. The properties of this reinforcement layer largely determine the deformation behaviour under internal pressure loading. For optimal space utilization and to meet certain design requirements, hoses are rarely straight but are often curved. These curved...

69. An efficient geometrically-exact nonlinear shell formulation based on Rodrigues parameters

Cinthia Sousa

08/04/2025, 18:10

Thin-walled structures are part of many engineering applications, as wind turbine blades, pressure vessels and sheet metal products. A thin-walled structure is characterized by one significantly smaller dimension compared to the others. To numerically support the designing process of such industrial structures, a robust and efficient approximation algorithm is required.

This work aims to...

70. Technical fabrics mechanical properties change as a reason of textile roofs failures

Paweł Kłosowski

09/04/2025, 08:30

Coverings made of technical fabrics are a solution eagerly used by engineers to cover a large area without the need for intermediate supports. They are mainly made of two types of composites: polyester threads coated with PVC and fiberglass threads coated with Teflon. Manufacturers of both types of fabrics guarantee their durability for 10 and sometimes even 50 years. However, coverings made...

71. Experimental Determination of a Load Approach FE-Method for Reducing the Formwork Support Time of Reinforced Concrete Ceilings

Herbert W. Müllner

09/04/2025, 09:10

The static design of reinforced concrete slabs is mainly based on finite element calculations. Ever tighter construction schedules and cost pressure on construction sites ultimately mean that the ceiling support times specified in the static calculation can no longer be met. On site, after the early stripping of the ceilings, temporary ceiling underlays will be provided in order to comply with...

72. Experimental and Numerical Analysis of the Impact of Perforation bands in the Facing on the Behavior of Sandwich Plates

Monika Chuda-Kowalska

09/04/2025, 09:30

Sandwich plates with perforated metal facings are increasingly used in acoustic constructions, where effective management of sound wave scattering and damping is essential, such as along roads and highways as components of acoustic barriers. This paper presents an experimental and numerical analysis of acoustic sandwich plates with a mineral wool core and perforated metal facings. The study...

73. Numerical and Experimental Analysis of Lightweight Bar-Membrane Joints

Marcin Adam Zmuda Trzebiatowski

09/04/2025, 09:50

In lightweight bar-membrane structures, it is essential to shape their joints properly. Especially in tensegrity structures, the reliability of such a connection plays a key role. This work aims to perform numerical and experimental analysis of selected bar-membrane joints that can be used in tensegrity systems. Despite the textile used for the membrane is a nonlinear material it can be...

74. An efficient Ritz-Method for post-buckling analysis of composite plates with bending-twisting coupling

Sebastian Dominik Dillen

09/04/2025, 16:30

Thin-walled composite structures, valued for their lightweight potential, find extensive application in the aerospace and shipbuilding industries. However, the stability behavior of these structures needs to be considered. As a locally post-buckled structure demonstrates the capacity to withstand increasing loads without immediate failure, it necessitates not only a buckling analysis but also...

75. A stationary predictor corrector method for the simulation of elastic-plastic bending of axially moving plates with non-material finite elements

Stefan Ramsauer

09/04/2025, 16:50

Current simulation models for continuous sheet metal forming usually rely on transient simulation strategies that yield the stationary forming state after a large number of time steps. This transient progression of states involves a gradual downstream transport of internal plastic variables. Since the intermediate states have little practical relevance, this established strategy is both...

76. A variationally consistent membrane wrinkling model based on spectral decomposition of the strain tensor

Josef Kiendl

09/04/2025, 17:10

We propose a novel variationally consistent membrane wrinkling model for analyzing the mechanical responses of wrinkled thin membranes [1]. The elastic strain energy density is split into tensile and compressive terms via a spectral decomposition of the strain tensor. Tensile and compressive parts of the stress and constitutive tensors are then obtained via consistent variation from the...

77. Approximate stability analysis of omega-stringer stiffened composite panels

Cherine El Yaakoubi-Mesbah

09/04/2025, 17:30

Thin-walled composite structures are widely used in weight-critical applications such as aircraft and spacecraft. However, ensuring the stability of such structures under various load cases remains a key challenge in their design and optimization. For omega-stringer stiffened panels, the local buckling and postbuckling behavior is investigated using closed-form analytical solutions. The...

78. Deformation and Damage in Three-Layered Plates with Auxetic Core at Static and Impact Loading

Dmytro Breslavsky

09/04/2025, 17:50

The use of multilayer structural elements is widespread in modern industrial applications. Recently, the use of so-called metamaterials has become widespread, in which the necessary mechanical properties are provided by the use of a cellular structure. Determining the physical and mechanical properties of such materials experimentally in many cases is impossible or very difficult. Therefore,...

79. Statistical evaluation of the influence of geometric and technological variables on the strength parameters of sandwich panels

Jolanta Pozorska

09/04/2025, 18:10

The subject of this article are sandwich panels commonly used as building envelope elements. Typical sandwich panels are three-layer elements consisting of thin but rigid facings and a thick but shear-deformable core. The produced panels are subjected to systematic strength tests, on the basis of which the parameters used in the design of the panels are determined. The produced panels differ...

80. Dimension reduction in elasticity

Reinhold Kienzler

10/04/2025, 08:30

Consistent one- and two-dimensional theories are derived from the three-dimensional linear theory of elasticity by the combination of the consistent-approximation method with the pseudo-reduction technique. Well-known and higher-order differential equations are obtained for structural components like plates and beams by using neither apriori assumptions nor (engineering-motivated) correction factors.

81. Asymptotically exact theory of functionally graded elastic beams

Khanh Chau Le

10/04/2025, 09:10

We construct a one-dimensional first-order theory for functionally graded elastic beams using the variational-asymptotic method. This approach ensures an asymptotically exact one-dimensional equations, allowing for the precise determination of effective stiffnesses in extension, bending, and torsion via numerical solutions of the dual variational problems on the cross-section. Our theory...

82. Numerical and analytical study of elastic parameters in linearized micropolar elasticity

Lucca Schek

10/04/2025, 09:30

This work revisits the linearized theory of micropolar elasticity for small deformations and presents a numerical implementation using mixed finite elements in the open-source software FEniCSx. Three boundary value problems are explored to showcase the physical implications of a micropolar formulation and give intuition to how the elastic parameters of the theory can relate to substructural...

83. The catenary line: numerical aspects and solutions for special boundary conditions

Michael Beitelschmidt

10/04/2025, 09:50

The rope curve or catenary line is a mechanical problem that has been solved since the 17th century. The cosine hyperbolic curve as a form of the rope curve is the subject of many mechanics textbooks. Nevertheless, it is worth taking another look at the chain line because technical applications, e.g. cable cars or suspension cables, have different boundary conditions which require different...

84. Development of space-fractional finite element for scale-sensitive truss structures

Paulina Stempin

10/04/2025, 10:10

As structures are scaled down to the microscale, the influence of microstructural effects becomes increasingly significant in determining their mechanical behavior. Accurately capturing the scale effect is essential for understanding and predicting the performance of micro-scaled structures.

This study focuses on developing a space-fractional finite element method tailored for...

92. Advancing the Simulation of Non-Linear Elastodynamics with Lattice Boltzmann Methods

Henning Müller

10/04/2025, 14:00

The application of Lattice Boltzmann (LB) methods to solid mechanics has recently garnered significant interest. These methods promise exceptional performance in terms of computational complexity, exhibiting linear scaling behavior. Moreover, meshless approaches, such as LB schemes, demonstrate favorable properties when addressing large deformations or fractures.

Different schemes have been...

85. Experimental investigations on mechanics based additively manufactured stayed lattice structures

Yating Ou

10/04/2025, 14:00

Lattice structures have gained increasing popularity due to their remarkable strength-to-weight ratio. With advancements in material extrusion additive manufacturing (MEX), complex designs of lattice structures have become more accessible and widely applicable. However, their slender components face the challenges of elastic buckling at low densities.

A novel lightweight additive...

87. Modeling the Influence of Temperature for Extrusion-Based 3D Concrete Printing – from Material to Structural Stability

Annika Robens-Radermacher

10/04/2025, 14:20

3D concrete printing (3DCP) aims to revolutionize construction by increasing automation, reducing material usage, and enabling customized designs. Despite its potential, the lack of regulations and reliance on trial-and-error methods result in significant waste and inefficiencies. Reliable models are needed to predict and control the complex printing process with its various influencing...

93. Reduced integration-based stabilization for virtual elements

Njomza Pacolli

10/04/2025, 14:20

Stabilization techniques in combination with reduced integration are often employed in numerical methods to address the problems of locking while reducing computational costs. In finite elements, concepts such as enhanced assumed strain methods (EAS) [1] are usually employed in combination with stabilization techniques to tackle certain locking phenomena, such as volumetric or shear locking....

94. A comparative study of polygonal element formulations for linear elasticity

Ajay Kumar Pasupuleti

10/04/2025, 14:40

With the rising complexity of architectural design, a growing interest in topology optimization, and the increasing need to model crack propagation, there is a higher demand of highly flexible geometry descriptions that go in hand with robust element formulations. Methods relying on polygonal meshes, such as the virtual element method (VEM), element formulations based on Wachspress shape...

88. Numerical Investigation of Laser Path on Residual Stresses in the Laser Powder Bed Fusion Process

Alfred Jose Puthoor

10/04/2025, 14:40

The Laser Powder Bed Fusion (LPBF) process is a pivotal additive manufacturing technique that enables layer-by-layer fabrication of intricate metallic components with exceptional precision, material efficiency, and design flexibility. In the LPBF process, a high-intensity laser selectively melts and fuses the powder in each layer along with the layer beneath it. However, the localized heating...

95. Comparison of Particle finite element method and Finite element method for nonlinear material behaviour in simple test cases

Paras Kadam

10/04/2025, 15:00

In industrial production, a substantial proportion of machining tools are manufactured from metals such as tungsten carbide and cobalt due to their exceptional hardness and durability. Both these minerals are considered critical from a social perspective [1]. To address this issue, the project 'Fairtools' aims to substitute these minerals in industrial tool applications and in cases where...

89. Structural detailing of material extrusion additively manufactured 2D metamaterials with rigid inclusions

Antonia Dönitz

10/04/2025, 15:00

Funding Acknowledgement: funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Projektnummer 543895078
Metamaterials are artificially designed structures that exhibit tailored mechanical properties. These properties result primarily from their underlying small-scale architecture and can therefore be optimised by adapting this structure. Owing to this, metamaterials...

90. Numerical modelling of thin-walled plate-based lattices and TPMS structures for lightweight engineering applications

Nikola Milenkovski

10/04/2025, 15:20

Additively manufactured sandwich structures with periodic cores are widely used in \linebreak lightweight construction due to their high stiffness-to-weight ratio and geometric flexibility. However, in the laser powder bed fusion (LPBF) process, the enclosed nature of unit cells such as FCC (face-centered cubic) and BCC (body-centered cubic) poses challenges for powder removal, potentially...

96. Reissner-Mindlin plate theory by the equilibrium-based FEM

Paulina Świątkiewicz

10/04/2025, 15:20

The equilibrium approach to the finite element method (FEM) is applied to the equilibrium problem for the Reissner-Mindlin plate. This is achieved using the Southwell stress functions [2], which are exploited to express stress-related quantities. Bending and twisting moments depend on the first derivatives of the stress functions, whereas the transverse shearing forces are determined by their...

97. Estimation of Discrete Model Parameters for Float Glass Panels Using the Rigid Finite Element Method

Małgorzata Abramowicz

10/04/2025, 15:40

This paper presents the parameter estimations of a mathematical model regarding the natural vibrations of soda-lime-silica float glass panels. The proposed approach was based on experimental research conducted on a real soda-lime-silicate sample. The estimated parameters include the modulus of elasticity and thickness of the panel. Other parameters of the model were sourced from literature...

91. Numerical Modelling of Additive Manufacturing in Construction

André Hürkamp

10/04/2025, 15:40

Additive Manufacturing in Construction (AMC) offers a unique advantage by combining automation with customization. Moreover, AMC introduces an innovative design approach, adding material only where it is structurally or functionally necessary. This makes AMC both cost-effective and resource-efficient. However, 3D printing with concrete presents specific challenges related to buildability. The...

98. Geometrically exact planar beam dynamics: Port-Hamiltonian modeling and structure-preserving discretization

Philipp L. Kinon

10/04/2025, 16:30

Port-Hamiltonian (PH) systems modeling [1] — a framework that inherently guarantees energetic consistency and facilitates the interconnection of physical systems — is gaining increasing popularity also in computational mechanics. Structural elements such as strings [2] and beams, which often represent submodules in flexible multibody systems, are particularly well-suited for this approach [3]....

104. Prestressing of concrete with iron-based shape memory alloy (Fe-SMA) short fibers: Experimental and numerical analysis

Alireza Tabrizikahou

10/04/2025, 16:30

Iron-based shape memory alloys (Fe-SMAs) exhibit unique shape memory effect (SME) behavior upon thermal activation, making them advantageous for various structural applications such as prestressing. Introducing short Fe-SMA fibers into concrete structures allows for a uniform and localized distribution of prestressing forces within the concrete matrix. In this study, an experimental campaign...

99. A novel approach for mass lumping leveraging the spectral decomposition theorem

Fabian Bäthge

10/04/2025, 16:50

CANCELLED
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From a computational perspective, the analysis of wave propagation and other high-frequency dynamic simulations is rather costly and presents considerable challenges. In such cases, explicit time integration is frequently employed, as the time step for numerical simulation is limited by the physical characteristics of the system. Nevertheless, the efficiency of explicit time...

105. Modelling of Failure Mechanisms of CFS Members Restrained with bonded CFRP Textile

Katarzyna Rzeszut

10/04/2025, 16:50

The research presented in this paper refers to the reinforcing method of thin-walled cold-formed steel (TWCFS) elements using Carbon Fibre (CF) composites joined by bonded connection. The proposed reinforcing method is a good response to TWCFS steel structures designers' needs which strive to achieve solutions which are fast easy and simultaneously safe. The originality of the proposed...

106. Application of the Finite Difference Method (FDM) in bending, dynamic and stability calculations of variable cross-section beams

Jerzy Rakowski

10/04/2025, 17:10

The main objective of this work is to present an idea of the Finite Difference Method (FDM) application for calculations of variable cross-section beams. The differential equation has an equivalent difference equation in FDM [3,4] where unfortunately the flexibility matrix is not symmetric because the bending EJ stiffness is not more constant along the beam [1]. In order to avoid these...

100. The Petrov-Galerkin Finite Element Method in the Context of Elastodynamic Problems

Felix Zähringer

10/04/2025, 17:10

It is well known that in Finite Element (FE) simulations, the selected mesh has a strong influence on the quality of the results. Especially in the case of highly distorted meshes, large discrepancies between the numerical and the analytical solution can be observed. To address this issue, various elements based on the Petrov-Galerkin FE method have been developed in recent years (see, e.g.,...

101. Determining Shock Responses with Experimental Impulse-Based Substructuring

Oliver Maximilian Zobel

10/04/2025, 17:30

Impulse-based substructuring (IBS) is the time-domain counterpart of the well-established frequency-based substructuring method (FBS). The IBS method is especially suited for determining shock responses, where the main goal might be to correctly predict the maximum amplitudes, e.g., of the accelerations. Its advantages originate from it being a time-domain method, i.e., high-frequent content,...

102. Comparison of the dynamics of a scaled trailer model and its real-size counterpart

Jan Volltrauer

10/04/2025, 17:50

Accurate NVH simulation results require the use of models that precisely represent the physical dynamics and interactions occurring under real-world operating situations. This research focuses on the development of a mechanical equivalent model for trailers that accounts for different loading conditions to improve the accuracy of these simulations. Central to this study is the use of...

103. Filtering and Regularization techniques to mitigate noise in experimental Frequency Based Substructuring and Transfer Path Analysis

Francesco Trainotti

10/04/2025, 18:10

Dynamic Substructuring provides a framework for analyzing the dynamics of complex, large-scale systems at the subcomponent level, often integrating model reduction techniques in numerical workflows. For machines and components with geometric and dynamic complexities, incorporating experimental data for component characterization is crucial. A frequency-based approach is commonly adopted for...

108. From local interactions to global dynamics: a network-based view on structural vibrations

Charlotte Geier

11/04/2025, 08:30

Mechanical structures, such as wind turbines and trusses, often exhibit complex vibratory responses to external excitation. Undesired or harmful oscillations might appear in addition to the desired system dynamics, sometimes depending on minor parameter variations. Understanding and predicting these responses is crucial to optimize the performance of such systems. However, nonlinearities due...

113. How can the master-slave elimination for multi-point constraints be drastically accelerated?

Jonas Boungard

11/04/2025, 08:30

Multi-point constraints are essential in modeling various engineering problems, for example in the context of joints undergoing large rotations or coupling of different element types in finite element analysis. The master-slave elimination is an efficient method for the numerical treatment of the constraints because it reduces the dimension of the resulting linear system which is particularly...

114. Cantilever with electromagnetic actuator for time-periodic modal energy transfer

Tobias Gorbach

11/04/2025, 08:50

Mechanical structures are becoming lighter and thinner, saving resources and space. However, thin-walled structures are more prone to vibrations and emit more noise. Such thin-walled structures are used also in atomic force microscopes for sensing. A cantilever is employed as the structure. The cantilever must remain in a static rest position for accurate measurements. Non-linear structural...

109. Graph-Based Truss Modeling of Corrugated Boards for Stress Analysis During Compression

Ricardo Fitas

11/04/2025, 08:50

Graphs are widely recognized for their ability to reduce data dimensionality while preserving essential structural and mechanical information. Computational efficiency can then be improved compared to methods relying on raw image data. Additionally, graphs can provide more detailed information about the underlying mechanical behavior, making them potentially powerful tools for structural...

110. Structural Optimization of Endoprosthetic Structures: Fatigue and Crack Propagation Testing for AI-Driven Design of Diatom-Based Lightweight Materials

Johanna Eisenträger

11/04/2025, 09:10

Diatoms, which occur in thousands of forms in our oceans, have a filigree, highly porous yet strong and resistant structure. It has been shown that better impact values can be achieved in the parametric lightweight optimization of crash-relevant components based on diatom structures than with conventional lightweight structures, despite being lighter. These properties make them suitable for...

115. Using Transfer Path Analysis for Condition Monitoring of Magnetic Bearings

Michael Kreutz

11/04/2025, 09:10

Condition monitoring focuses on detecting and identifying changes in a machine's dynamics. In rotor dynamics, flexible connection elements such as bearings and joints are critical. Over time, the dynamics of these components can change, e.g., due to aging, which changes the overall dynamic behavior of the rotor system. Condition monitoring uses response data acquired during operation that is...

111. A Convolutional Autoencoder Approach to Predict Shear Angle Deformations During Forming of Fiber-Reinforced Thermoplastics

Jan Middelhoff

11/04/2025, 09:30

The increasing electrification of the mobility sector leads to some additional weight due to the implementation of heavy batteries and associated peripherals. Therefore, lightweight materials such as fiber-reinforced thermoplastics (FRTPs) are required to increase efficiency through weight reduction without compromising the mechanical properties of the component. Most automotive FRTP...

116. Real-Time Hybrid Substructuring for Testing Lower Limb Prostheses

Arian Kist

11/04/2025, 09:30

The development of patient-specific lower limb prosthetics is highly important. Recent advances in additive manufacturing have paved the way for cost-effective, rapid, and customized prosthetic design. In order to ensure the safety and comfort of the wearer, a versatile testing method that can be used from the early stages of development is required. It is important that this method not only...

112. Automatic Model Identification and Calibration of Hyperelastic Materials based on Digital Image Correlation and Bayessian Regression

Duc Hoang Nguyen

11/04/2025, 09:50

The continuous development of increasingly complex materials necessitates the expansion of epistemic knowledge in materials modeling to enable comprehensive optimization in terms of cost and performance already during the virtual design phase. In parallel, modern experimental techniques and data-driven methodologies have advanced substantially, with machine learning offering unprecedented...

117. Equilibration-based a-posteriori error estimates for solid mechnics

Maximilian Brodbeck

11/04/2025, 09:50

Numerical solutions of, e.g. elasticity or heat conduction suffer from the deterioration of the overall accuracy when re-entrant corners, internal-respective boundary layers, or shock-like fronts are present [1]. A-posteriori error estimates offer a systematic way of retaining accuracy by localised mesh refinement. Following the seminal idea of Prager and Synge [2], such error estimates can be...

118. Building Digital Twins for Engineering Applications (Material testing)

Gajendra Babu Budihala

11/04/2025, 10:10

The rapid advancement of Industrial technologies and data collection and handling methods has paved the way for the widespread adoption of Digital Twins (DTs) in engineering, enabling seamless integration between physical systems and their virtual counterparts. Digital Twins are dynamic, real-time digital replicas of physical assets, systems, or processes designed to optimise performance,...

788. Remarks on stochastic analysis of space-fractional truss model

Noman Jabbar

11/04/2025, 10:10

This research concentrates on a stochastic analysis of space-fractional truss model,a special case of space-fractional Euler-Bernoulli beam. The analysis assumes that the applied loads or length scale or order of continua are random (normal distribution). The main outcome is the answer to the question on the distribution of deflection and normal forces at selected points of truss structure....

107. Analysis of rotational restraint for cross-beams of deck twin girder steel bridges

Wojciech Siekierski