The mechanical performance and a rate-dependent constitutive model for Al3Ti compound
The mechanical performance and a rate-dependent constitutive model for Al3Ti compound作者机构:Henan Key Laboratory of Intelligent Manufacturing of Mechanical EquipmentMechanical and Electrical Engineering InstituteZhengzhou University of Light IndustryZhengzhou450002China
出 版 物:《Defence Technology(防务技术)》 (Defence Technology)
年 卷 期:2020年第16卷第3期
页 面:627-634页
核心收录:
学科分类:081702[工学-化学工艺] 0806[工学-冶金工程] 0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0802[工学-机械工程] 0703[理学-化学] 0701[理学-数学] 0801[工学-力学(可授工学、理学学位)] 0702[理学-物理学]
基 金:The authors gratefully acknowledge the financial support from National Natural Science Foundation of China(No.11602230) the Program for Innovative Research Team in Science and Technology in the University of Henan Province(No.18IRTSTHN015) Key Scientific Projects of University in Henan Province(20B430021)
主 题:Titanium aluminide JH-2 model Numerical simulation Quasi-static and dynamic compression tests Ballistic test
摘 要:The Al3Ti compound has potential application in the high temperature structure materials due to its low density,high strength and *** mechanical behaviors of the material under different loading rates were studied using compression *** results indicate that Al3Ti is a typical brittle material and its compressive strength is dependent on the strain ***,a series of rate-dependent constitutive equations are needed to describe its mechanical behaviors ***,it is still short of professional research on the material model for *** this study,the mate rial model was developed on the basis of JH-2 constitutive equations using the experimental *** model was then applied in simulating the impact process of Ti/Al3Ti metal-intermetallic laminate composites so as to validate the established *** agreement between simulation and experiment results shows the constitutive model predict the material responses under high rate and large deformation *** work provides more support for the theoretical and numerical research on the intermetallic.