摘要
基于有限元分析软件ABAQUS内聚力单元,采用自定义材料(VUMAT)编译二维平面状态下弹塑性内聚力模型子程序.用所编写的弹塑性内聚力模型VUMAT子程序对薄板粘接结构的开裂进行模拟计算,并与双线性内聚力模型、多项式内聚力模型的VUMAT子程序模拟结果及实验结果进行对比分析.结果表明内聚力关系对粘接结构开裂过程的拉力变化影响较大,对不同胶体的粘接结构应选择相应的内聚力模型.
This paper proposes a way to compile a 2D elasticplastic cohesive zone model based on the cohe sive zone element through userdefined material subroutine （VUMAT） in ABAQUS. The delamination of thin plates is studied using the VUMAT subroutine of elasticplastic cohesive zone model （CZM）. The simulation results are compared with the result of the Bilinear CZM, the Polynomial CZM and the experiments. The re suits show that the cohesive zone models have great influence on the tensile forces in the progress of delamina tion, and to choose suitable CZMs for the various adhesives bonded joints.
出处
《郑州大学学报（工学版）》
CAS
北大核心
2014年第1期77-80,共4页
Journal of Zhengzhou University（Engineering Science）
基金
国家自然科学基金资助项目(10972200)
