Determinations of mixed-mode stress intensity factors for cracked bodies subjected to thermal loadings by using the thermal weight function method
Journal
Journal of Thermal Stresses
Journal Volume
17
Journal Issue
4
Pages
601-617
Date Issued
1994
Author(s)
Abstract
In this study, mixed-mode stress intensity factors for cracked bodies subjected to thermal loadings are determined by using the thermal weight function method. The thermal weight function is a universal junction for a given cracked body and can be obtained from any arbitrary mechanical loading system. The thermal weight function may be thought of as the Green's junction for the stress intensity factor of cracked bodies subject to thermal loadings. Once the thermal weight function for a cracked body is determined, the stress intensity factor for any arbitrary distributed temperature can be simply and efficiently evaluated through the integration of the product of the temperature and the correspondent thermal weight function. A numerical boundary element method for the determination of thermal weight functions is used in this study to evaluate mixed-mode stress intensity factors. As a demonstration, some examples of cracked bodies subjected to thermal loadings are solved by using the thermal weight function method, and the results are compared with solutions obtained from other methods.
Type
journal article