Strojniski Vestnik-Journal of Mechanical Engineering, ( ISI ), Volume (7-8), No (57), Year (2011-4) , Pages (622-632)

Title : ( Computation of Stress Intensity Factor in Functionally Graded Plates under Thermal Shock )

Authors: Mahmoud Shariati , Mohammad Bagher Nazari , Mohammad Reza Eslami , Behrooz Hassani ,

Citation: BibTeX | EndNote

Abstract

This paper addresses the implementation of the element-free Galerkin method, which is enriched intrinsically for fracture analysis of functionally graded materials under mode I steady-state and transient thermal loading. The stress intensity factors are evaluated by means of both equivalent domain integral and displacement correlation technique. Continuum functions and the micromechanical model are used to describe the distribution of material properties. For thermal shock analysis, the modal decomposition method, which is a semi-discretization approach, is implemented to obtain the transient temperature field. Also, few parametric analyses are performed to study the effect of material gradation on the stress intensity factors. The results imply that the magnitude of the stress intensity factor reaches its peak a short while after the thermal shock, indicating its significant role in the fracture failure.

Keywords

, functionally graded materials, element-free Galerkin method, equivalent domain integral, displacement correlation technique, thermal stresses
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@article{paperid:1034055,
author = {Shariati, Mahmoud and Mohammad Bagher Nazari and Mohammad Reza Eslami and Hassani, Behrooz},
title = {Computation of Stress Intensity Factor in Functionally Graded Plates under Thermal Shock},
journal = {Strojniski Vestnik-Journal of Mechanical Engineering},
year = {2011},
volume = {7-8},
number = {57},
month = {April},
issn = {0039-2480},
pages = {622--632},
numpages = {10},
keywords = {functionally graded materials; element-free Galerkin method; equivalent domain integral; displacement correlation technique; thermal stresses},
}

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%0 Journal Article
%T Computation of Stress Intensity Factor in Functionally Graded Plates under Thermal Shock
%A Shariati, Mahmoud
%A Mohammad Bagher Nazari
%A Mohammad Reza Eslami
%A Hassani, Behrooz
%J Strojniski Vestnik-Journal of Mechanical Engineering
%@ 0039-2480
%D 2011

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