Influence of dent on residual ultimate strength of 2024-T3 aluminum alloy plate under axial compression

被引：10

作者：

Li, Zhi-gang ^{[1
,2
,3
]}

Zhang, Ming-yi ^{[1
]}

Liu, Fu ^{[1
]}

Ma, Chun-sheng ^{[2
]}

Zhang, Jin-huan ^{[2
]}

Hu, Zhong-min ^{[1
]}

Zhang, Jia-zhen ^{[1
]}

Zhao, Ya-nan ^{[4
]}

机构：

[1] Commercial Aircraft Corp China Ltd, Beijing Aeronaut Sci & Technol Res Inst, Beijing 102211, Peoples R China

[2] Tsinghua Univ, State Key Lab Automot Safety & Energy, Beijing 100084, Peoples R China

[3] Beijing Jiaotong Univ, Sch Mech Elect & Control Engn, Beijing 100044, Peoples R China

[4] Beijing Inst Technol, Sch Mech Engn, Beijing 100081, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2014年 / 24卷 / 10期

关键词：

aluminum alloy plate; impactor; dent; residual ultimate strength; compression; EDGE SHEAR LOADS; STEEL PLATES; LEADING-EDGE; IMPACT; DAMAGE; SPH;

D O I：

10.1016/S1003-6326(14)63446-4

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Drop-weight impact tests were conducted on 2024-T3 aluminum plates with five types of impactors, and then the effects of the dent on the residual ultimate strength of the 2024-T3 specimens were investigated through axial compression tests. Results indicate that with increase in dent depth, the five types of dents affect the ultimate strength of the plate in different trends. Nevertheless, other than the plate global deflection caused by impacting, the dent itself has unremarkable effect on the ultimate strength. The mathematical expressions are derived regarding the relationship between impact energy factor and the dent depth factor as well as the compressive ultimate strength reduction rate and the dent depth factor.

引用

页码：3084 / 3094

页数：11