A penny-shaped crack in transversely isotropic magneto-electro-thermo-elastic medium subjected to uniform symmetric heat flux

作者：Yang, Jing^*; Jin, Xianyu; Jin, Nanguo

来源：International Journal of Solids and Structures, 2014, 51(9): 1792-1808.

DOI：10.1016/j.ijsolstr.2014.01.024

• Magneto-electro-thermo-elasticity
• Potential theory
• Three dimensional fracture
• Penny-shaped crack
• Symmetric heat flux

The problem of a penny-shaped crack subjected to symmetric uniform heat flux in an infinite transversely isotropic magneto-electro-thermo-elastic medium is investigated. The exact solution in the full space is in terms of line integrals and the exact solution in the crack plane also is obtained. Although we start our derivations with magneto-electro-thermo-elastic, the solution presented in this paper is also applicable for linear transversely isotropic thermopiezoelectric, thermomagnetoelastic,thermoelastic materials (see Appendix E). The solution in the crack plane, which shows a great agreement with the solution for a transversely isotropic medium obtained by Tsai (1983), indicates that sigma(x),sigma(y),D-x,D-y,B-x, and B-y along the crack rim are of the same singularity of the normal stress or its equivalent quantities. To illustrate how the applied symmetric heat fluxes affect the whole fields, a numerical example is also given.

• 出版日期2014-5-1
• 单位浙江大学