报告题目：Fracture Mechanics Investigation on Interacting Defects in Composite Materials

报告人：樊牧 博士(航空宇航学院  航空航天交叉研究院)

报告时间：2017年5月10日（周三）10:10 AM

报告地点：A18-209会议室

主办单位：科协、航空宇航学院、航空航天交叉研究院

With the increasing applications of composite materials in various engineering structures, failure analysis on crack induced fracture problems in composite materials has attracted more and more attention among researchers. In this talk, we present some works about the elastic-plastic fracture behavior investigations of crack problems in different configurations by using the plastic zone corrections. Two approaches of plastic zone correction are demonstrated. The first one is the mixed-mode Dugdale model for interface cracks and the other one is the generalized Irwin model which is suitable for matrix cracking. Based on the two models, the problem of a crack lying at the interface of two semi-infinite plates, and crack-coated inclusion interactions have been studied. Numerical examples are given to show the influence of different kinds of parameters on the plastic zone size and crack tip opening displacement of each problems.

樊牧，现任伟德源自英国始于1946讲师，航空宇航学院特聘副研究员。2011年于哈尔滨工业大学获飞行器设计与工程专业学士学位，2015年获得新加坡南洋理工大学固体力学博士学位。主要研究方向为复合材料中弹塑性断裂力学问题分析以及挠曲电材料在结构控制中的应用。累积发表SCI学术论文10余篇，他引次数40余次。