Numerical Simulation of Thermoelastic Stress Field and Laser Ultrasound in Transversely Isotropic Plate
スポンサーリンク
概要
- 論文の詳細を見る
On the basis of an analysis of two important parameters, meshing size and time step, as well as the stability of solution, the generation of laser-generated ultrasound waves in a transversely isotropic plate is investigated using the finite element method (FEM). Taking into account the effects of thermal diffusion and optical penetration, as well as the finite width and duration of the laser source, the transient temperature distributions in a unidirectional fiber-reinforced composite plate are calculated, and the stress fields and the laser-generated acoustic field propagating in the principal planes are obtained. The generation of stress fields excited by the rapid thermal expansion of the laser-irradiated region is analyzed. The numerical results indicate that the unidirectional fiber-reinforced composite plate exhibits isotropic behavior when the wave vector is perpendicular to the fiber direction and that the laser ultrasonic waveforms are affected by the anisotropic nature of the plate when the wave vector is parallel to the principal plane including the fiber direction. The numerical results also indicate that, different from the case of isotropic materials, the features of the laser-generated ultrasound waveform, including velocities, amplitudes, and the propagation angle range of the head wave, have a close relationship with the propagation plane and propagating direction in anisotropic specimens.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2008-02-25
著者
-
Shen Zhong-hua
Department Of Applied Physics Nanjing University Of Science And Technology
-
Lu Jian
Department Of Applied Physics Nanjing University Of Science And Technology
-
Ni Xiao-wu
Department Of Applied Physics Nanjing University Of Science And Technology
-
Wang Ji-jun
Department Of Hygiene Faulty Of Public Health Shandong Medical University
-
Shen Zhong-Hua
Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
-
Xu Bai-Qiang
Faculty of Science, Jiangsu University, Zhenjiang 212013, People's Republic of China
-
Lu Jian
Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
-
Xu Bai-Qiang
Faculty of Science, Jiangsu University, Zhenjiang 212013, People's Republic of China
-
Ni Xiao-Wu
Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
-
Wang Ji-Jun
Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
関連論文
- Optical Deflection of Technique for Investigation of Laser-Induced Oscillating Bubble on Metal Surface
- Investigation of Lamb Waves Propagation by fibre-Coupling Optical Beam Deflection Detection Technique and Finite Element Method (Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics and Fluid Mechanics)
- Urban-Rural Difference in Cereal Consumption by People in Shandong Province, China
- Urban-Rural Comparison of Nutrient Intake by Adult Women in Shandong Province, China
- Effects of ischemic postconditioning on reperfusion injury in rat liver grafts after orthotopic liver transplantation
- A New Algorithm for 2D Convolution on Mesh-connected SIMD Computers
- A Novel Wet Etching Process of Pb(Zr, Ti)O_3 Thin Films for Applications in Microelectromechanical System
- Preparation of Thick Pb(Zr, Ti)O_3 (PZT) Film by Electrostatic Spray Deposition (ESD) for Application in Micro-System Technology
- Time-Optimal 2D Convolution on Mesh-Connected SIMD Computers with Bounded Number of PEs (Special Issue on Architectures Algorithms and Networks for Massively Parallel Computing)
- Finite Element Analysis of the Scanning Laser Line Source Technique
- A PROCEDURE DEVELOPED TO PRIORITIZE ROADWAY INTERSECTIONS FOR SAFETY AND TRAFFIC IMPROVEMENTS
- Determination of Surface Stress Distributions in Steel Using Laser-Generated Surface Acoustic Waves
- Dynamics of Laser-Induced Cavitation Bubble near Solid Boundary
- Numerical Simulation of Thermoelastic Stress Field and Laser Ultrasound in Transversely Isotropic Plate
- Optical Deflection Technique for Investigation of Laser-Induced Oscillating Bubble on Metal Surface
- Effect of Liquid Viscosity on a Liquid Jet Produced by the Collapse of a Laser-Induced Bubble near a Rigid Boundary