Related Experiment Video
Updated: Dec 26, 2025
11:20
Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses
Published on: July 2, 2012
15.4K
A laser pulse impactful on a half-space using the modified TPL G-N models
Ashraf M Zenkour1,2, Daoud S Mashat3
1Department of Mathematics, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia. zenkour@kau.edu.sa.
Scientific Reports
|March 12, 2020
Summary
This study explores generalized thermoelastic wave propagation in a half-plane subjected to laser pulse heating. Different Green-Naghdi models reveal thermal relaxation significantly impacts temperature, displacement, and stress fields.
Area of Science:
- Solid Mechanics
- Continuum Mechanics
- Heat Transfer
Background:
- Thermoelasticity describes the coupling between thermal and mechanical fields.
- Generalized thermoelasticity theories account for thermal relaxation times.
- Laser pulse heating induces complex thermal stresses and deformations.
Purpose of the Study:
- Investigate wave propagation in a generalized thermoelastic half-plane under laser pulse loading.
- Analyze the influence of energy dissipation and different Green-Naghdi models.
- Compare single-, dual-, and three-phase-lag models with thermal relaxations.
Main Methods:
- Utilized the normal mode method for analytical solutions.
- Obtained numerical results for field quantities.
- Graphical illustrations to present and compare physical quantities.
Main Results:
- Demonstrated the significant effect of thermal relaxation times on wave propagation.
- Highlighted differences in temperature, displacement, dilatation, and stress fields across various Green-Naghdi models.
- Showcased the impact of energy dissipation on thermoelastic response.
Conclusions:
- Generalized thermoelasticity models with thermal relaxations are crucial for accurate analysis.
- The choice of Green-Naghdi model significantly alters the thermoelastic behavior.
- Laser pulse loading induces complex wave propagation patterns influenced by material properties and thermal effects.
