Numerical simulation and experiments of titanium alloy engine blades based on laser shock processing

被引：38
|
作者：
Li, Pengyang [1 ,2 ]
Huang, Shikun [1 ]
Xu, Haifeng [1 ]
Li, Yuxi [1 ]
Hou, Xiaoli [1 ]
Wang, Quandai [1 ]
Fu, Weiping [1 ]
Fang, Yingwu [3 ]
机构：
[1] Xian Univ Technol, Xian 710048, Peoples R China
[2] Chongqing Univ, State Key Lab Mech Transmiss, Chongqing 400044, Peoples R China
[3] Air Force Engn Univ, Xian 710077, Peoples R China
来源：
AEROSPACE SCIENCE AND TECHNOLOGY | 2015年 / 40卷
基金：
美国国家科学基金会;
关键词：
Laser shock processing; Residual stress; FEM simulation; TC4 engine blade; RESIDUAL-STRESS; ALUMINUM-ALLOY; MECHANICAL-PROPERTIES; FGM PLATES; BEHAVIOR; IMPACTS; FIELDS; SHEAR;
D O I：
10.1016/j.ast.2014.10.017
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
Effects of Laser Shock Processing (LSP) on mechanical properties of TC4 titanium alloy blades were numerically evaluated. Finite element models were developed to simulate the residual stress distributions and energy profiles on the TC4 titanium alloy blades under different power density inputs during LSP. The models were validated by comparing the simulation results with the experimental results. Simulations show that the kinetic energy of the blade reaches the maximum value within 0-70 ns. The residual stress distribution results exhibit the decreasing compressive residual stress along the radial direction as well as along with the increased depth. The microstructure of the TC4 titanium alloy blades after LSP from transmission electron microscope (TEM) indicates that simulation results were reasonable. (C) 2014 Elsevier Masson SAS. All rights reserved.
引用
收藏
页码：164 / 170
页数：7
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