Copper Tube Compression in Z-Current Geometry, Numerical Simulations and Comparison with Cyclope Experiments

Lefrançois, A. ; L' ; Eplattenier, P. ; Burger, M.

Lawrence Livermore National Laboratory

关键词: Copper;    Compression;    Finite Element Method;    Geometry;    Strain Rate;   

DOI  :  10.2172/877880
RP-ID  :  UCRL-TR-219180
RP-ID  :  W-7405-ENG-48
RP-ID  :  877880

美国|英语

来源: UNT Digital Library

【 摘 要 】

Metallic tubes compressions in Z-current geometry were performed at the Cyclope facility from Gramat Research Center in order to study the behavior of metals under large strain at high strain rate [1]. 3D configurations of cylinder compressions have been calculated here to benchmark the new beta version of the electromagnetism package coupled with the dynamics in Ls-Dyna and compared with the Cyclope experiments. The electromagnetism module is being developed in the general-purpose explicit and implicit finite element program LS-DYNA{reg_sign} in order to perform coupled mechanical/thermal/electromagnetism simulations. The Maxwell equations are solved using a Finite Element Method (FEM) for the solid conductors coupled with a Boundary Element Method (BEM) for the surrounding air (or vacuum). More details can be read in the reference [2] [3].