MICROSTRUCTURE AND DAMAGE ANALYSIS OF SOLID PROPELLANT

摘要：

According to a Micro-CT based tomogram,the particles in solid propellant was considered as ellipses.A numerical method called random ellipses packing algorithm was used to model the 2D microstructu;.;of the solid propellant.Then,a bilinear cohesive law,which relates the stress tractions and displacement jumps,was adopted to simulate the debonding process of particle/binder interfaces,and a representative volume element of the propellant microstructure under uniaxial tension was analyzed.The results indicate that the debonding of particle/binder interfaces is an important reason to nonlinear macroscopic constitutive responses,and the larger particles are debonding earlier than that of small ones.

关键词： Microstructure Micro-CT Packing Damage Solid propellant

作者: C.B.Ma H.F.Qiang W.M.Wu J.Xue

作者单位: 201 staffroom,Xian Hi-Tech Institure,Xian 710025,China State key laboratory of oral disease,Sichuan University,Chengdou 610041,China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 218-221

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）