| 实体单元焊点模型在前纵梁碰撞仿真中的应用 |
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| 引用本文： | 杨济匡,叶映台,彭倩,吴沈荣,郭杰. 实体单元焊点模型在前纵梁碰撞仿真中的应用[J]. 吉林大学学报(工学版), 2011, 41(6): 542-548 |
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| 作者姓名： | 杨济匡 叶映台 彭倩 吴沈荣 郭杰 |
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| 作者单位： | 1. 湖南大学汽车车身先进设计制造国家重点实验室,长沙,410082
2. 奇瑞汽车股份有限公司乘用车工程研究二院,安徽芜湖,241009 |
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| 基金项目： | “863”国家高技术研究发展计划项目(2006AA110101); 教育部、国家外专局“111计划”项目(111-2-11); 湖南大学汽车车身先进设计制造国家重点实验室自主研究项目(60870004) |
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| 摘 要： | 为了提高碰撞仿真中汽车前纵梁焊点的模拟精度,应用LS-DYNA软件,建立了壳单元模拟母材、单个实体单元模拟焊核和热影响区的焊点模型。母材材料特性及焊点失效参数分别通过板材拉伸试验及焊点杯形拉伸试验获得。采用数值KSⅡ试验对该焊点模型在母材网格不同偏置情况下的内力进行了研究。基于经验证的纵梁有限元模型对前纵梁碰撞进行了仿...
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| 关 键 词： | 车辆工程 焊点模型 有限元 碰撞仿真 实体单元 前纵梁 |
Application of spot weld model using solid element in simulation of front longitudinal beam crash |
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| YANG Ji-kuang,YE Ying-tai,PENG Qian,WU Shen-rong,GUO Jie. Application of spot weld model using solid element in simulation of front longitudinal beam crash[J]. Journal of Jilin University:Eng and Technol Ed, 2011, 41(6): 542-548 |
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| Authors: | YANG Ji-kuang YE Ying-tai PENG Qian WU Shen-rong GUO Jie |
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| Affiliation: | YANG Ji-kuang1,YE Ying-tai1,PENG Qian1,WU Shen-rong2,GUO Jie2(1.State Key Laboratory of Advanced Design and Manufacture for Vehicle Body,Hu'nan University,Changsha 410082,China,2.Vehicle Engineer Research Second Institution,Chery Automobile Co.Ltd,Wuhu 241009,China) |
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| Abstract: | In order to improve the simulation accuracy of the weld spot of the front longitudinal beam in the vehicle crash simulation,a spot weld model using the shell element to simulate the parent material and the single solid element to simulate the weld nugget and its heat affected zone was built by means of the software LS-DYNA.The properties of the parent material and the failure parameters of the weld spot were acquired by tensile tests of the sheet and the weld spot cup respectively.The internal force of the ... |
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| Keywords: | vehicle engineering spot weld model solid element finite element crash simulation frontal longitudinal beam |
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