Meso-Scale FEA modeling to Simulate Crack Initiation and Propagation in Boron Steel
The scope of this paper focuses on the characterization and prediction of potential crack initiation and propagation in a boron-steel component under extreme impact load, utilizing a meso-scale FE (0.2 mm solid element) modeling with the MIT MMC (modified Mohr-Coulomb) fracture criterion. The MMC fracture criterion is implemented through LS-DYNA® *MAT224 and *MAT_ADD_EROSION with GISSMO option. A finite element mesh with total number of elements close to 100 million is created to investigate the accuracy of MMC criterion in predicting fracture of a boron component in a dynamic impact test. The CAE results are compared to sled test results for system force-deflection, part deformation mode and crack initiation and propagation.
https://www.dynalook.com/conferences/13th-international-ls-dyna-conference/automotive/meso-scale-fea-modeling-to-simulate-crack-initiation-and-propagation-in-boron-steel/view
https://www.dynalook.com/@@site-logo/DYNAlook-Logo480x80.png
Meso-Scale FEA modeling to Simulate Crack Initiation and Propagation in Boron Steel
The scope of this paper focuses on the characterization and prediction of potential crack initiation and propagation in a boron-steel component under extreme impact load, utilizing a meso-scale FE (0.2 mm solid element) modeling with the MIT MMC (modified Mohr-Coulomb) fracture criterion. The MMC fracture criterion is implemented through LS-DYNA® *MAT224 and *MAT_ADD_EROSION with GISSMO option. A finite element mesh with total number of elements close to 100 million is created to investigate the accuracy of MMC criterion in predicting fracture of a boron component in a dynamic impact test. The CAE results are compared to sled test results for system force-deflection, part deformation mode and crack initiation and propagation.
03_Automotive_051.pdf
— 669.9 KB