铸造技术2017，Vol.38Issue(12)：2836-2839,4.DOI:10.16410/j.issn1000-8365.2017.12.012
基于内聚力模型的单胞颗粒复合材料损伤行为研究
Damage Behavior of Single Cell Composite Material Based on the Cohesive Model
摘要
Abstract
Based on the microstructure of the material equivalent particle phase,matrix phase and interface phase,three-phase composites were established by using nonlinear finite element software,the whole process of interface from initial damage to crack and interface debonding were simulated.Through numerical simulation,the influence of the damage evolution law of interface initial linear modulus,interface bonding strength and interface energy release rate of material was discussed.The results show that when the load is small and the interface is well integrated,the stress can be transmitted well between the particles and the matrix.When the load reaches the maximum stress of the interface,the interface cannot continue to be loaded,and initial damage is started.When the load continues to increase,the interface load capacity decreases,the interface enters the damage extension stage until the interface stress is zero,and the interface debonding failure completely.Under the action of hydrostatic tension,when the energy release rate of the interface is relatively large,the separation displacement required for the complete removal of the interface is also increased,and the time of release is later.关键词
内聚力/单胞/复合材料/损伤Key words
cohesion/single cell/composite/damage分类
通用工业技术引用本文复制引用
刘昌明..基于内聚力模型的单胞颗粒复合材料损伤行为研究[J].铸造技术,2017,38(12):2836-2839,4.基金项目
国家自然科学基金资助项目(51505346) （51505346）
