Thermoelastic mechanical process analysis of the laser-generated Lamb wave in thin fiber reinforced composite plate by numerical simulation

Jijun Wang; Baiqiang Xu; Zhonghua Shen; Xiaowu Ni; Guoyu Wang; Jian Lu

doi:10.1117/12.755392

4 January 2008 Thermoelastic mechanical process analysis of the laser-generated Lamb wave in thin fiber reinforced composite plate by numerical simulation

Jijun Wang, Baiqiang Xu, Zhonghua Shen, Xiaowu Ni, Guoyu Wang, Jian Lu

Author Affiliations +

Proceedings Volume 6837, Information Optics and Photonics Technologies II; 68370Z (2008) https://doi.org/10.1117/12.755392
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

A quantitative numerical modeling of laser-induced Lamb waves in thin unidirectional fiber-reinforced composite plate, transversely isotropic, is established by using finite element method (FEM). Taking into account the effects of thermal conduction, optical penetration as well as the finite width and duration of laser source, the transient temperature distributions are calculated. Applying the temperature distributions induced by the absorbed laser energy to structure analyses as thermal loading, the stress fields, the deformations of plate and the laser-induced Lamb waveforms are obtained. The mechanical generation process of Lamb wave is presented intuitively by analyzing the stress field propagation and the deformations of plate. The characteristics of Lamb waveforms caused by the anisotropic nature of specimen material, including amplitude and dispersive nature, are analyzed. This method provides insight to the generation and propagation of the laser-induced Lamb waves in thin unidirectional fiber-reinforced composite plate and establishes the quantitative relationship between the laser-induced Lamb waveforms and the laser input as well as the specimen parameters.

Citation Download Citation

Jijun Wang, Baiqiang Xu, Zhonghua Shen, Xiaowu Ni, Guoyu Wang, and Jian Lu "Thermoelastic mechanical process analysis of the laser-generated Lamb wave in thin fiber reinforced composite plate by numerical simulation", Proc. SPIE 6837, Information Optics and Photonics Technologies II, 68370Z (4 January 2008); https://doi.org/10.1117/12.755392

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available