爆炸与冲击2011，Vol.31Issue(1)：95-100,6.
薄壁异形环截面管材料环向动态拉伸特性测试
Study on a radial-direction dynamic tensile test method for a thin-walled tube structure with special ring section
摘要
Abstract
Aimed at a thin-walled tube structure with special ring section, combined with finite element analysis, a radial-directional dynamic tensile experimental method was proposed based on conventional split Hopkinson tensile bar(SHTB). A special clamp was designed, and a hollow steel transimission bar was used to magnify the transmitted signals. For the 1Crl8Ni9Ti thin-walled tube structure,some dynamic tensile tests were implemented under different strain rates. The resulsts show that the experimental method is applicable to the thin-walled tube structure with special ring section. In addition, the special ring has a long plastic stage and the fracture strain is reduced with strain rate incressing. Moreover, the tensile strength is obviously enhanced with strain rate increasing.关键词
固体力学/拉伸强度/动态拉伸/Hopkinson拉杆/异形环/空心透射杆Key words
solid mechanics/ tensile strength/ dynamic tensile/ Hopkinson tensile bar/ special ring/hollow transmission bar分类
数理科学引用本文复制引用
杨建波,李玉龙,索涛,宋保永..薄壁异形环截面管材料环向动态拉伸特性测试[J].爆炸与冲击,2011,31(1):95-100,6.基金项目
国家自然科学基金项目(10932008) （10932008）
航空科学基金项目(20082F53050) （20082F53050）
西北工业大学"结构力学行为科学与技术"创新引智基地项目(B07050) （B07050）
