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| FEM Numerical Simulation of Side Crashworthiness for Vehicle Structure |
| Received:July 20, 2017 Revised:December 15, 2017 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2017.12.009 |
| KeyWord:side impact large deformation numerical simulation moving deformation barrier B-pillar |
| Author | Institution |
| ZHENG He-yan |
School of Mechanical Engineering, Southwest Jiaotong University, Chengdu , China |
| LU Yao-hui |
School of Mechanical Engineering, Southwest Jiaotong University, Chengdu , China |
| ZHAO Zhi-tang |
School of Mechanical Engineering, Southwest Jiaotong University, Chengdu , China |
| ZHANG De-wen |
School of Mechanical Engineering, Southwest Jiaotong University, Chengdu , China |
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| Abstract: |
| Objective To study the crashworthiness of the main bearing parts on the side of the car structure, establish finite element model of the vehicle and the moving deformable barrier model (MDB) according to parameters and related standards of a domestic SUV by referring to China's collision regulation and ECE R95. Methods The HyperMesh preprocessing was used to convert the CAD model into CAE finite element model to output the k file, and put it in LS-DYNA (large deformation finite element simulation software) to calculate side crashworthiness of the vehicle. Result The main bearing parts such as the B-pillar and the door had large deformation in vehicle side impact. The deformation of the B-pillar was 116.6mm, and the deformation of the door was 190mm. It was in line with the requirement of China's regulations and ensured sufficient occupant space after impact. Conclusion The vehicle has better side crashworthiness, and the numerical simulation results can provide a reference for the structural design of the vehicle. |
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