激光诱导冲击波在胶层中的传播耦合规律分析

doi:10.19936/j.cnki.2096-8000.20230728.005

复合材料科学与工程 ›› 2023, Vol. 0 ›› Issue (7): 35-43.DOI: 10.19936/j.cnki.2096-8000.20230728.005

激光诱导冲击波在胶层中的传播耦合规律分析

熊纯¹, 任子昂¹, 严肖艳¹, 刘嘉仪¹, 徐进军^1,2*

1.空军航空维修技术学院航空机电设备维修学院, 长沙 410124;
2.湖南省飞机维修工程技术研究中心, 长沙 410124

收稿日期:2023-01-13 发布日期:2023-08-22
通讯作者: 徐进军(1986—),男,研究生,副教授,研究方向为航空材料设计及激光技术研究,xujinjun1986@sohu.com。
作者简介:熊纯(1973—),男,研究生,教授,研究方向为飞机结构维修。
基金资助:
湖南省自然科学基金科教联合项目(2020JJ7079)

Analysis of the propagation coupling law of laser-induced shock wave in the rubber layer

XIONG Chun¹, REN Ziang¹, YAN Xiaoyan¹, LIU Jiayi¹, XU Jinjun^1,2*

1. Aviation Electromechanical Equipment Maintenance Department, Changsha 410124, China;
2. Hunan Aircraft Maintenance Engineering Technology Research Center, Changsha 410124, China

Received:2023-01-13 Published:2023-08-22

摘要/Abstract

摘要： 本文设计了高能激光诱导等离子体诱导激光冲击波冲击胶接试件试验,建立了激光冲击胶接试件的数值模型,模拟了应力波在胶层中的传播过程,对比试验与仿真所得到的背面粒子速度,验证了有限元模型的准确性。在此基础上,采用仿真方法研究了不同能量、脉冲宽度的激光冲击试件时,应力波在胶层中的传播耦合规律。结果表明,激光能量和脉宽均会影响应力波在胶层中的传播。随激光能量增大,试件背面自由粒子速度峰值和最大拉应力值增大,最大拉应力深度不变。随激光脉宽增大,试件背面自由粒子速度峰值增大,最大拉应力值增大,最大拉应力深度减小。

关键词: 激光冲击, 全光纤光子多普勒测速, 应力波, 传播耦合规律, 复合材料

Abstract: The study of the propagation and coupling law of laser-induced shock wave in laminated materials is the basis of the realization of this technology. In this paper, a high energy laser-induced plasma shock wave impact bonded specimen was designed, and a numerical model of the laser impact test specimen was established. The coupling process of stress wave propagation in the adhesive layer was simulated, and the particle velocity on the back obtained by the test and simulation was compared to verify the finite element model. On this basis, the simulation method is used to explore the stress wave propagation coupling law in the bond layer when the laser impact bonded specimen with different energy, pulse width and spot diameter. The results show that the laser energy and pulse width both affect the stress wave propagation in the rubber layer. With the increase of laser energy, the peak free particle velocity on the back of the specimen and maximum tensile stress value increase, and the maximum tensile stress depth remains unchanged. With the increase of laser pulse width, the peak free particle velocity on the back of the specimen increases, the maximum tensile stress value increases, and the maximum tensile stress depth decreases.

Key words: laser impact, full-fiber photon Doppler velocimetry, stress wave, propagation coupling law, composites

中图分类号:

TB332

熊纯, 任子昂, 严肖艳, 刘嘉仪, 徐进军. 激光诱导冲击波在胶层中的传播耦合规律分析[J]. 复合材料科学与工程, 2023, 0(7): 35-43.

XIONG Chun, REN Ziang, YAN Xiaoyan, LIU Jiayi, XU Jinjun. Analysis of the propagation coupling law of laser-induced shock wave in the rubber layer[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(7): 35-43.

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激光诱导冲击波在胶层中的传播耦合规律分析

Analysis of the propagation coupling law of laser-induced shock wave in the rubber layer

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