碳纤维复合材料车门防撞梁多尺度高效变形模拟及实验验证

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中文摘要：以碳纤维复合材料车门防撞梁为例,开发了一种面向工程零部件的多尺度高效变形模拟技术,建立了自洽聚类分析方法及多尺度渐进损伤本构模型,通过多尺度单元与唯象单元混合建模,有效降低了模型的求解成本,通过将有限的计算资源分配在恰当的位置,结果表明计算资源的利用效率得到显著提升,实现了工程零部件损伤行为的高效预测,实际计算时间缩短至原来的1/4.对三点弯状态下复合材料防撞梁的宏微观渐进损伤过程进行了分析.基于真空袋成形工艺进行了防撞梁样件试制以及三点弯破坏实验,验证了仿真结果的准确性.

外文标题：Multi-scale efficient simulation on deformation of CFRP car door anti-collision beam and experimental verification

外文摘要：Taking carbon fiber reinforced plastic car door anti-collision beam as an example,a multi-scale efficient simulation technology for engineering components was developed.The self-consistent cluster analysis method and the multi-scale progressive damage constitutive model were established.Through the hybrid modeling of multi-scale units and phenomenological elements,the solving cost of the model is effectively reduced.By allocating limited computing resources to appropriate locations,the results show that the utilization efficiency of computing resources is significantly improved,the efficient prediction of the damage behaviors of engineering components is realized,and the actual calculation time is shortened to 1/4 of the original.The macroscopic and microscopic progressive damage process of the com-posites anti-collision beam under three-point bending conditions was analyzed.Based on the vacuum bag forming process,the anti-collision beam sample was produced and the three-point bending failure experiment was carried out to verify the accuracy of the simulation results.

外文关键词：

anti-collision beammulti-scale concurrent simulationself-consistent cluster analysisprogressive damage modelthree-point bending experiment

作者：

郭聪、江晟达、何霁、李淑慧、林忠钦

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作者单位：

上海交通大学机械系统与振动国家重点实验室,上海 200240

上海交通大学上海市复杂薄板结构数字化制造重点实验室,上海 200240

关键词：

防撞梁多尺度并发模拟自洽聚类分析渐进损伤建模三点弯曲实验

基金：

国家自然科学基金重大资助项目国家自然科学基金面上资助项目上海市自然科学基金面上资助项目

项目编号：

517901705197536419ZR1425800

出版年：

2024

DOI：

10.3969/j.issn.1007-2012.2024.01.014

塑性工程学报

中国机械工程学会

塑性工程学报

CSTPCD北大核心

影响因子：0.46

ISSN：1007-2012

年,卷(期)：2024.31(1)

参考文献量16