Multiscale 3D Fracture Simulation Integrating Tomographic Characterization

摘要：

　　Ductile fracture of engineering alloys is a multi-stage process involving nucleation,growth and coalescence of voids across different length scales of microstructure (micron size primary particles and submicron size secondary particles)during the plastic deformation.Generally,primary inclusions debond from the metal matrix and form primary voids under small plastic deformation.When the localized deformation between primary voids is intensified,void linkage can be triggered by nucleation of a secondary population of particles on the intervoid ligament.In these multi-stage and multi-scale processes,shear coalescence of secondary voids (microvoids) plays an important role in the fracture process 1.

作者: S.TANG A.M.KOPACZ S.CHAN G.B.OLSON W.K.LIU

作者单位: School of Material Science and Engineering, Chongqing University, Chongqing,China 400044; Mechanical Mechanical Engineering Department, Northwestern University, Evanston, IL, 60201, USA Material Science and Engineering Department, Northwestern University, Evanston, IL, 60201, USA

会议类型: 国际会议

会议名称: Sixth International Conference on Nonlinear Mechanics(第六届国际非线性力学会议)(ICNM-VI)

会议地点: 上海

会议语种:英文

页码: 170-171

在线出版日期: 2013-08-01（万方平台首次上网日期，不代表论文的发表时间）