Speaker
Description
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 their replacement is technically infeasible, the project focuses on significantly reducing their utilization. Large deformations in tooling systems arise from factors such as high operational stresses, extreme temperatures and others, resulting in significant material strain and geometric changes. For modelling such complex deformation problems, the Particle Finite Element Method (PFEM) has proven to be a robust solution [2]. The traditional Finite Element Method (FEM) may encounter excessive mesh distortion and a subsequent loss of accuracy in these scenarios, but the PFEM addresses these challenges with efficient re-meshing techniques that can result in obtaining more precise solutions. To assess the capabilities of PFEM, simulations using this technique were performed to investigate material behaviour under tensile loads. The study was conducted in two stages: first, a baseline specimen with uniform material properties was simulated to establish a reference for comparison. In the second stage, a specimen with spatially varying material properties, representative of composite materials, was taken into consideration. In both scenarios, the results of PFEM and FEM were compared with respect to accuracy and computational time. The findings obtained from this study, further demonstrate the potential of PFEM in modelling large deformations and composite materials, thereby highlighting its potential for a diverse range of advanced industrial applications.
References
Marscheider-Weidemann, F., (2021): Rohstoffe für Zukunftstechnologien 2021. – DERA Rohstoffinformationen 50: 366 S., Berlin.
Cremonesi, M., Franci, A., Idelsohn, S. et al. A State of the Art Review of the Particle Finite Element Method (PFEM). Arch Computat Methods Eng 27, 1709–1735 (2020).
