激光冲击铜薄膜的应力波传播特性模拟分析

张建; 花银群; 曹将栋

doi:10.7510/jgjs.issn.1001-3806.2016.04.030

激光冲击铜薄膜的应力波传播特性模拟分析

1.
江苏大学材料工程与科学学院, 镇江 212013;
2.
南通航运职业技术学院机电系, 南通 226010

作者简介: 张建(1990-),男,硕士研究生,主要从事激光与材料纳米化的研究.

通讯作者: 花银群, huayq@ujs.edu.cn ;

基金项目:
国家自然科学基金资助项目(51175234)
中图分类号: TN249

Simulation of propagation characteristics of stress wave in copper films with laser shock processing

1.
School of Material and Science Engineering, Jiangsu University, Zhenjiang 212013, China;
2.
Department of Mechanical and Electrical Engineering, Nantong Shipping College, Nantong 226010, China

Corresponding author: HUA Yinqun, huayq@ujs.edu.cn ;

CLC number: TN249

摘要: 为了研究冲击波的传播特性,采用有限元分析方法模拟不同参量激光冲击铜薄膜的过程,结合应力波理论分析了膜-基系统的动态应力波传播特性。结果表明,激光能量为30mJ时,冲击波为弹性波,薄膜在单次冲击作用下,其内质点速率最大为-0.018mm/s,3次冲击作用下,薄膜内部质点速度与残余应变变化较小;激光能量为120mJ时,冲击波为弹塑性波,3次冲击比单次冲击质点最大速率减小了26.44%,残余应变深度增加了35.48%。这对研究冲击波传播具有指导意义。
- 激光技术 /
- 应力波 /
- 冲击波 /
- 应变 /
- 有限元分析
Abstract: In order to study the propagation characteristics of shock wave, shock processing of copper films under the different processing parameters was simulated with finite element software. Propagation characteristics of dynamic stress wave in film-substrate system were analyzed by using stress wave theory. The results show that when the laser energy is 30mJ, shock waves are elastic. The maximum velocity of particles in thin film with the single shock is -0.018mm/s, the change of the velocity and the residual strain of particles in films is little with three shocks. When laser energy is 120mJ, shock waves are elastic-plastic. The maximum velocity of particles and the largest depth of the residual strain in the films with three shocks are respectively 26.44% lower and 35.48% higher than those with single shock. These have guiding significance to the study of propagation characteristics of shock wave.
- laser technique /
- stress wave /
- shock wave /
- strain /
- finite element analysis

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激光冲击铜薄膜的应力波传播特性模拟分析

作者简介: 张建(1990-),男,硕士研究生,主要从事激光与材料纳米化的研究.

通讯作者: 花银群, huayq@ujs.edu.cn ;

Simulation of propagation characteristics of stress wave in copper films with laser shock processing

Corresponding author: HUA Yinqun, huayq@ujs.edu.cn ;

计量

激光冲击铜薄膜的应力波传播特性模拟分析

通讯作者: 花银群, huayq@ujs.edu.cn;

作者简介: 张建(1990-),男,硕士研究生,主要从事激光与材料纳米化的研究

English Abstract

Simulation of propagation characteristics of stress wave in copper films with laser shock processing

Corresponding author: HUA Yinqun, huayq@ujs.edu.cn

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留言板

激光冲击铜薄膜的应力波传播特性模拟分析

作者简介: 张建(1990-),男,硕士研究生,主要从事激光与材料纳米化的研究.

通讯作者: 花银群, huayq@ujs.edu.cn ;

Simulation of propagation characteristics of stress wave in copper films with laser shock processing

Corresponding author: HUA Yinqun, huayq@ujs.edu.cn ;

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激光冲击铜薄膜的应力波传播特性模拟分析

通讯作者: 花银群, huayq@ujs.edu.cn;

作者简介: 张建(1990-),男,硕士研究生,主要从事激光与材料纳米化的研究

English Abstract

Simulation of propagation characteristics of stress wave in copper films with laser shock processing

Corresponding author: HUA Yinqun, huayq@ujs.edu.cn

全文HTML

目录