WIT Press


Temperature And Displacement Discontinuity Boundary Element Method For Analysis Of Cracks In Three-dimensional Isotropic Thermoelastic Media



Price

Free (open access)

Paper DOI

10.2495/CMEM-V5-N3-241-249

Volume

Volume 5 (2017), Issue 3

Pages

8

Page Range

241 - 249

Author(s)

M.H. ZHAO, H.Y. DANG, Y. LI, C.Y. FAN & G.T. XU

Abstract

For the analysis of cracks in three-dimensional isotropic thermoelastic media, a temperature and displacement discontinuity boundary element method is developed. The Green functions for unit-point temperature and displacement discontinuities are derived, and the temperature and displacement discontinuity boundary integral equations are obtained for an arbitrarily shaped planar crack. Our boundary element method is based on the Green functions for a triangular element. As an application, elliptical cracks are analyzed to validate the developed method. The influence of various thermal boundary conditions is studied. 

Keywords

boundary element method, boundary integral equation method, displacement and temperature discontinuity, Green function, isotropic thermoelastic medium, planar crack, stress intensity factor, thermal boundary condition, triangular element.