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Study of Laser-generated Transient Lamb Wave by Experiment and Numerical Simulation(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2003年05期
Page:
588-594
Research Field:
Publishing date:

Info

Title:
Study of Laser-generated Transient Lamb Wave by Experiment and Numerical Simulation
Author(s):
NiXiaowu ChenXiao XuBoqiang XuRongqing ShenZhonghua LuJian
School of Sciences,NUST,Nanjing 210094
Keywords:
Lamb w ave opt ical deflection method f inite element method ablat ion model
PACS:
TN249
DOI:
-
Abstract:
In order to study the generat ion and propagation characteristics of laser-generated Lamb wave in a solid plate, this paper presents the fiber-coupled optical deflect ion method to detect and to further discuss the detection principle in detail. Besides, based on the ablation model, the development of t ransient Lamb is simulated by the f inite element method. The result s of the numerical simulat ion are in good agreement w ith laser Lamb w aveforms detected in experiment. This detection technique has a great potent ial in laser ult rasonic.

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Last Update: 2013-03-17