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Dramatic Speed-Up in FEM Simulations of Various Incremental Forming Processes Thanks to Multi-Mesh Implementation in Forge®

Abstract : Improvements in parallel computing and adaptive remeshing have permitted to simulate a wide range of metal forming processes within few hours or days on modern multi-core workstations. However, they do not tackle the issues encountered in incremental forming processes, making them very challenging. Multi-mesh methods opens very interesting doors in this domain, making possible to take advantage of adaptive remeshing techniques (optimizing the ratio precision/cost) without its usual drawbacks (loss of information and diffusion issues).We present in this article a fully parallel Dual-Mesh implementation in the commercial FEA software FORGE®, compatible with a wide range of other FEM facilities. Speed-up larger than 4 are common for incremental forming simulations, and speed-up larger than 10 can be reached in favorable cases. Parallel efficiency is the same than for our standard computations (>80% for more than 2000 nodes per core).
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00851320
Contributor : Magalie Prudon <>
Submitted on : Tuesday, August 13, 2013 - 2:22:44 PM
Last modification on : Wednesday, October 14, 2020 - 4:02:09 AM

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Pascal de Micheli, Etienne Perchat, Richard Ducloux, Hugues Digonnet, Lionel Fourment. Dramatic Speed-Up in FEM Simulations of Various Incremental Forming Processes Thanks to Multi-Mesh Implementation in Forge®. Key Engineering Materials, Trans Tech Publications, 2013, 554 - 557, pp.2499-2506. ⟨10.4028/www.scientific.net/KEM.554-557.2499⟩. ⟨hal-00851320⟩

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