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Theoretical investigation of an elliptical crack in thermopiezoelectric material. Part II: Crack propagation |
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| Authors: | F Shang T Kitamura M Kuna |
| Institution: | a Department of Engineering Physics and Mechanics, Graduate School of Engineering, Kyoto University, Yoshidahonmachi Sakyoku, Kyoto 606-8501, Japan b Institute of Mechanics and Fluid Dynamics, Freiberg University of Mining and Technology, Lampadiustrasse 4, D-09596, Freiberg, Germany |
| Abstract: | Propagation behavior of an elliptical crack in thermopiezoelectric material subjected to a uniform temperature is investigated in this paper. The three-dimensional strain energy density formulation is used to determine the direction of crack propagation and the shape of the initial fracture increment. It is found that the elliptical crack grows coplanarly under this particular load case but not normal to the crack front. The elliptical crack tends to become a circular one when thermal loading is applied. |
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