[1]何跃娟a,XX,朱日宏a,等.厚铝管中激光激发温度场和瑞利波的模拟[J].南京理工大学学报(自然科学版),2005,(04):468-471.
 HE Yue-juan~a,ZHU Ri-hong~a,SHEN Zhong-hua~b,et al.Simulation of Laser-induced Temperature Fields and Rayleigh Waves in Thick Al Pipe[J].Journal of Nanjing University of Science and Technology,2005,(04):468-471.
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厚铝管中激光激发温度场和瑞利波的模拟
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2005年04期
页码:
468-471
栏目:
出版日期:
2005-08-30

文章信息/Info

Title:
Simulation of Laser-induced Temperature Fields and Rayleigh Waves in Thick Al Pipe
作者:
何跃娟1a 2XX 朱日宏1a 沈中华1b 陆 建1b 倪晓武1b
1. 南京理工大学a. 电子工程与光电技术学院, b. 理学院, 江苏南京210094; 2. 江南大学理学院, 江苏无锡214062
Author(s):
HE Yue-juan~1a2ZHU Ri-hong~1aSHEN Zhong-hua~1bLU Jian~1bNI Xiao-wu~1b
1.a.School of Electronic Engineering and Photoelectric Technology, b.School of Sciences,NUST, Nanjing 210094,China;2.School of Sciences, Southern Yangtze University,Wuxi 214062,China
关键词:
激光超声 瑞利波 有限元方法
Keywords:
laser-ultrasonic Rayleigh waves finite element method
分类号:
TB30
摘要:
利用有限元方法数值模拟了脉冲激光作用于厚铝管时产生的温升以及由此温升而产生的表面瑞利波的情况。给出了温度随角向的分布曲线,比较了物理参数随温度变化和不随温度变化两种情况下温度场的区别,并进一步得到了近场区域表面波的时域波形。数值结果表明:在考虑材料物理参数随温度变化基础上得到的近场区域的表面声波中显著的波为掠面纵波和瑞利波,与平板中的类似。为热弹条件下管状材料的激光超声无损检测提供了参考。
Abstract:
The temperature fields and the surface Rayleigh waves generated by a pulsed laser in a thick Al pipe are analysed by using a f inite element method. The difference of temperature fields from considering and neglecting the temperature-dependence of material parameters is compared, and the temperature distributions of Al pipe are obtained in angular orientation at various time. The numerical results show that the main features of the surface acoust ic waves obtained in the near fields after considering the temperature-dependence of material parameters are two kinds of waves― the surface skimming longitudinal wave and the Rayleigh wave,which is similar as those in a plate. It is useful in the applications in the laser-ultrasonic non-destructive evaluation of the hollow cylindrical systems.

参考文献/References:

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相似文献/References:

[1]赵艳,沈中华,陆建,等.激光激发Rayleigh波及其在圆弧面上的传播规律研究[J].南京理工大学学报(自然科学版),2007,(01):105.
 ZHAO Yan,SHEN Zhong-hua,LU Jian,et al.Generation of Rayleigh Wave by Laser and Its Propagation on Cylinder[J].Journal of Nanjing University of Science and Technology,2007,(04):105.

备注/Memo

备注/Memo:
国家自然科学基金(60208004)
作者简介: 何跃娟( 1971- ) , 女, 江苏宜兴人, 讲师, 博士生, 主要研究方向: 激光与物质的相互作用, E-mail: yuejuanhe@ thmz. com;
通讯作者: 朱日宏( 1964- ) , 男, 江苏大丰人, 教授, 博士生导师, 主要研究方向: 图像处理、光学测量, E-mail: zhurihong@ vip. sina. com。
更新日期/Last Update: 2013-03-03