Strain Concentrations in Tensile,Fatigue and Fracture Behaviour

摘要：

　　A critical survey has been made of tensile,fracture,shear banding and fatigue measurements and interpretations reported for different types of materials and test conditions.The mechanical properties of the materials are shown to be largely determined by microscopic plastic strain concentrations which depend on the inhomogeneity of the material microstructure,especially including importantly inhomogeneity of the dislocation substructure.Understanding this inhomogeneity is shown to provide a number of connections between seemingly disparate phenomena.The evolution of the dislocation substructure and its relationship to crystallography and various levels of microstructure are critically important.Professor Cottrell made seminal contributions to understanding the fundamental mechanisms involved in determining such strain concentrations.His work continues to provide clarity and guidance to current research accomplishments.

关键词： Pile-ups Cleavage PLC ASB PSB

作者: Stephen D.Antolovich Ronald W.Armstrong

作者单位: Schools of Materials Science and Mechanical Engineering,Georgia Tech,Atlanta,GA,30332-0245 USA & School of Mechanical and Materials Engineering,Washington State University,Pullman,WA 99164-2920 USA

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: 1-10

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）