題目：Fracture Mechanics Investigation on Interacting Defects in Composite Materials

報告人：樊牧 博士(航空宇航學院航空航天交叉研究院)

時間：2017年5月10日（周三）10:10 AM

地點：明故宮校區A18-209會議室

主辦單位：科協、航空宇航學院、航空航天交叉研究院、機械結構力學及控制國家重點實驗室

報告摘要：

    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.

報告人簡介：

樊牧，現任南京航空航天大學講師，航空宇航學院特聘副研究員。2011年于哈爾濱工業大學獲飛行器設計與工程專業學士學位，2015年獲得新加坡南洋理工大學固體力學博士學位。主要研究方向為復合材料中彈塑性斷裂力學問題分析以及撓曲電材料在結構控制中的應用。累積發表SCI學術論文10余篇，他引次數40余次。