Local approach of fracture on semi-crystalline polymers:contribution of X-ray laminography technique

摘要：

　　Damage mechanisms in a PolyAmide 6 semi-crystalline polymer were characterized by using Synchrotron Radiation Laminography technique on CT like specimen.Damage appeared as multiple penny shaped crazes.The maximum damage occurred at mid-thickness and located at a small distance from the notch root.An attempt was made to apply local approach of fracture concept thanks to finite element analysis using damage-based constitutive model.FE simulation successfully captured the aforementioned micro-mechanisms of crack initiation,by void coalescence.Further work is carried out to determine the crack dimension corresponding to the maximum net stress: the criterion being used for the global approach of fracture.

关键词： Polymers X-ray laminography Local approach of fracture Finite element

作者: Lucien Laiarinandrasana Thilo F. Morgeneyer Henry Proudhon Lukas Helfen Jacques Besson

作者单位: Centre des Matériaux,Mines ParisTech,Evry Cedex 91003,France European Synchrotron Radiation Facility(ESRF),Grenoble Cedex 38043,France

会议类型: 国际会议

会议名称: 第13届国际断裂大会(ICF2013)

会议地点: 北京

会议语种:英文

页码: 1-7

在线出版日期: 2013-06-16（万方平台首次上网日期，不代表论文的发表时间）