Dynamic problem in piezo-electric microstretch thermoelastic medium under laser heat source
Multidiscipline Modeling in Materials and Structures
ISSN: 1573-6105
Article publication date: 27 November 2018
Issue publication date: 21 February 2019
Abstract
Purpose
The purpose of this paper is to study the thermal and mechanical disturbances in a piezo-electric microstretch thermoelastic medium due to the presence of ultra-short laser pulse as input heat source.
Design/methodology/approach
The medium is subjected to normal force, tangential force and thermal source. The solution of the problems is developed in terms of normal modes. Mathematical expressions have been obtained for normal stress, tangential stress, microstress, dielectric displacement vector and temperature change.
Findings
The numerically computed results are shown graphically. The effect of time and laser radius on temperature distribution is also shown graphically and comparison to theoretical results has been discussed. A mathematical model has been developed for the system of equations and various stress quantities have been analyzed. Some computer programs have also been written for this study. Two particular cases are also derived from the present investigation.
Originality/value
The effect of laser heat source is studied in piezo-electric microstretch thermoelastic medium. It is observed from the figures that the laser heat source has significant role on the values of coupled tangential stress.
Keywords
Citation
Kumar, A. and Ailawalia, P. (2019), "Dynamic problem in piezo-electric microstretch thermoelastic medium under laser heat source", Multidiscipline Modeling in Materials and Structures, Vol. 15 No. 2, pp. 473-491. https://doi.org/10.1108/MMMS-04-2018-0077
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited