漂珠/AZ91D复合材料界面断裂数值模拟预测  

Numerical simulation on Fly-ash cenospheres/AZ91D composites interface

作　　者：李凡国[1,2] 于思荣[1] 初宏超 韩晓玲[2] LI FanGuo;YU SiRong;CHU HongChao;HAN XiaoLing(China University of Petroleum,Qingdao 266580,Shandong,China;Qingdao Harbor and Vocational Technical College,Qingdao,266427,Shandong,China)

机构地区：[1]中国石油大学(华东)机电工程学院,山东青岛266580 [2]青岛港湾职业技术学院,山东青岛266427

出　　处：《中国铸造装备与技术》2017年第2期1-3,共3页China Foundry Machinery & Technology

基　　金：教育部科学技术研究重大项目"漂珠/镁合金复合材料的界面及力学行为机理研究"(313056)

摘　　要：基于代表性体积元的细观力学有限元方法,建立了三种有限元模型,预测漂珠/AZ91D复合材料界面断裂的倾向,对漂珠/AZ91D复合材料进行压缩断裂实验,与模拟结果相比较。结果表明,复合材料断裂裂纹可能最先出现在漂珠壁上;多颗粒均匀随机分布的模型更能够从复合材料整体上判断出断裂损伤的趋势;三维模拟结果和实验结果更加接近。The interface fracture tendency of FAC/AZ91D composite is predicted by establishing three kinds of fi nite element models,using the micromechanics fi nite element simulations on the base of representative volume element.Comparing with the simulation results,the FAC/AZ91D composite compression fracture experiment was made.The results show that the composite crack may appear fi rstly at the wall of the cenospheres;multi-uniform particles randomly distributed model can from the overall composite judge the trend of damage and fracture,three-dimensional simulation is closer to the experimental results.

关 键 词：镁基复合材料 漂珠 代表性体积元 数值模拟 

分 类 号：TB333[一般工业技术—材料科学与工程]