Comparison of elements and state-variable transfer methods for quasi-incompressible material behaviour in the particle finite element method
(2024) In Computational Mechanics- Abstract
The Particle Finite Element Method (PFEM) is attractive for the simulation of large deformation problems, e.g. in free-surface fluid flows, fluid–structure interaction and in solid mechanics for geotechnical engineering and production processes. During cutting, forming or melting of metal, quasi-incompressible material behaviour is often considered. To circumvent the associated volumetric locking in finite element simulations, different approaches have been proposed in the literature and a stabilised low-order mixed formulation (P1P1) is state-of-the-art. The present paper compares the established mixed formulation with a higher order pure displacement element (TRI6) under 2d plane strain conditions. The TRI6 element requires... (More)
The Particle Finite Element Method (PFEM) is attractive for the simulation of large deformation problems, e.g. in free-surface fluid flows, fluid–structure interaction and in solid mechanics for geotechnical engineering and production processes. During cutting, forming or melting of metal, quasi-incompressible material behaviour is often considered. To circumvent the associated volumetric locking in finite element simulations, different approaches have been proposed in the literature and a stabilised low-order mixed formulation (P1P1) is state-of-the-art. The present paper compares the established mixed formulation with a higher order pure displacement element (TRI6) under 2d plane strain conditions. The TRI6 element requires specialized handling, involving the deletion and re-addition of edge-mid-nodes during triangulation remeshing. The robustness of both element formulations is analysed along with different state-variable transfer schemes, which are not yet widely discussed in the literature. The influence of the stabilisation factor in the P1P1 element formulation is investigated, and an equation linking this factor to the Poisson ratio for hyperelastic materials is proposed.
(Less)
- author
- Schewe, Markus ; Bartel, Thorsten and Menzel, Andreas LU
- organization
- publishing date
- 2024
- type
- Contribution to journal
- publication status
- epub
- subject
- keywords
- Element technology, Mapping of variables, Numerical stability, Particle finite element method, Remeshing
- in
- Computational Mechanics
- publisher
- Springer
- external identifiers
-
- scopus:85201616628
- ISSN
- 0178-7675
- DOI
- 10.1007/s00466-024-02531-y
- language
- English
- LU publication?
- yes
- id
- d29d2bdb-2b40-4044-a04e-3ef6d501384a
- date added to LUP
- 2024-11-01 14:42:55
- date last changed
- 2025-04-04 14:17:48
@article{d29d2bdb-2b40-4044-a04e-3ef6d501384a,
abstract = {{<p>The Particle Finite Element Method (PFEM) is attractive for the simulation of large deformation problems, e.g. in free-surface fluid flows, fluid–structure interaction and in solid mechanics for geotechnical engineering and production processes. During cutting, forming or melting of metal, quasi-incompressible material behaviour is often considered. To circumvent the associated volumetric locking in finite element simulations, different approaches have been proposed in the literature and a stabilised low-order mixed formulation (P1P1) is state-of-the-art. The present paper compares the established mixed formulation with a higher order pure displacement element (TRI6) under 2d plane strain conditions. The TRI6 element requires specialized handling, involving the deletion and re-addition of edge-mid-nodes during triangulation remeshing. The robustness of both element formulations is analysed along with different state-variable transfer schemes, which are not yet widely discussed in the literature. The influence of the stabilisation factor in the P1P1 element formulation is investigated, and an equation linking this factor to the Poisson ratio for hyperelastic materials is proposed.</p>}},
author = {{Schewe, Markus and Bartel, Thorsten and Menzel, Andreas}},
issn = {{0178-7675}},
keywords = {{Element technology; Mapping of variables; Numerical stability; Particle finite element method; Remeshing}},
language = {{eng}},
publisher = {{Springer}},
series = {{Computational Mechanics}},
title = {{Comparison of elements and state-variable transfer methods for quasi-incompressible material behaviour in the particle finite element method}},
url = {{http://dx.doi.org/10.1007/s00466-024-02531-y}},
doi = {{10.1007/s00466-024-02531-y}},
year = {{2024}},
}