反冲塞效应的热弹性理论分析(Ⅰ)──温度场分析<sup>*</sup>

周益春; 段祝平; 王春奎

反冲塞效应的热弹性理论分析(Ⅰ)──温度场分析^*

中国科学院力学研究所非线性连续介质力学开放研究实验室北京 100080

基金项目: * 国家863高技术激光领域的资助

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出版历程
- 收稿日期: 1994-08-31
- 刊出日期: 1995-10-15

The Analytical Study on the Laser Induced Reverse-Plugging Effect by Using the Classical Elastic Plate Theory(Ⅰ)——Temperature Fields

Laboratory for Nonliner Mechanies of Continuous Media(LNM), Institute of Mechanics, Chinese academy of Sciences, Beijing 100080, P. R. China

摘要

摘要: 本文对我们新近发现的长脉冲激光束对金属薄片材料的一种新的破坏方式──“反冲塞”效应进行了温度场分析,用Hankel变换和Laplace变换,得到了温度场的精确解,以激光束的空间分布为均匀分布和高斯分布为例对温度场进行了计算,结果表明激光束的空间均匀分布是产生反冲塞效应的主要原因。
- 长脉冲激光束 /
- 反冲塞效应 /
- 温度场
Abstract: The temperature distributions in the metallic foils induced by spatially cylindrical long-pulsed laser is examined in order to analyse the newly-discovered reverse-pluggingeffect(RPE).An exact solution for the temperature fields is derived by using the Hankel transform and Laplace transform.Numerical results are obtained for bothspatial distributions with Gaussian and cylindrical types.The results show that thespatially cylindrical distribution of laser offers a formidable potential for the RPE.
- long pulsed laser /
- the RPE /
- temperature fields

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参考文献(11)

[1]	S,Eliezer,I,Gilath and T,Bar-Noy,Laser-induced spall in metals;eaperiment and simulation,J,Appl,Phys.,67(2)(1990),715-724.
[2]	M,Boustie and F,Cottet,E aperimental and numerical study of laser indeuced spallation into aluminum and coppertargets,J,Appl.PhDs.,69(11)(1991),7533-7538.
[3]	A,D.Zweig,A thermo-mechanical model for laser ablation,J,Appl.PhDs.,70(3)(1991),1684-1691.
[4]	S,S,Cohen,J.B.Bernstein and P,W,Wyatt,T he effect of m ultiple laser pulses on damage to thin metallic films,J,Appl,Phys.,71(2)(1992),630-637.
[5]	A,Kar and J.Mazumder,Two-dimensional model for materials damage due to melting and vaporization during laser irradiation,J.Appl,Phys.,68(8)(1990),3884-3891.
[6]	孙承伟,激光破坏机理,K激光与物质相互作用的热和力学效应会议文集》.上海(1991).
[7]	段祝平、周益春、王春奎,非高斯型脉冲激光对金属薄片材料产生的“反冲塞”效应,《激光与物质相互作用的热和力学效应会议文集》,绵阳(1992),434-453.
[8]	段祝平、周益春,脉冲激光对薄片材料产生的‘反冲塞”效应,力学进展,23(1)(1993),11.
[9]	段祝平、王春奎、周益春,多功能铰玻璃激光装置的研制及应用,《激光与物质相互作用的热和力学效应会议文集》,绵阳(1992),579-587.
[10]	周益春、赵伊君,连续激光引起LY-12铝合金热应力破坏的理论计算,光电子.激光,1(5)(1990),262-266.
[11]	周益春、段祝平、解伯民,反冲塞效应的热弹性理论分析(I)—反鼓包运动,应用数学和力学(待发表).