Abstract
The elastic stress field around a circular elastic inclusion in an infinite functionally graded material (FGM) panel that is subjected to a uniform static anti-plane shear loading at infinity is considered. Assuming the rigidity modulus of the FGM panel to be exponential, the analytical solutions of stress and strain distribution around the circular elastic inclusion are obtained by using the variable separation method. Due the generality of the elastic inclusion, other geometrical discontinuities, such as hole and rigid inclusion, can be seen as special cases of circular elastic inclusion when the inclusion rigidity modulus takes a suitable value. Therefore, the present solutions analytically reduce to some classical solution in some special cases. The present analytical solutions are compared with the existing exact solutions to verify them. Finally, the effects of the relative inclusion rigidity modulus ratio and the inhomogeneous rigidity modulus ratio on the stress distribution and the concentration factor are systematically investigated.
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Recommended by Associate Editor Heung Soo Kim
Shi Peng-peng received the M.S. degree in mathematics and computer science from the Ningxia Univesity, Ningxia, China, 2013. He is currently working toward the Ph.D. in Mechano-Electronic Engineering at Xidian University, Shaanxi, China. His research interests include elasticity and fracture mechanics of multi-field coupling materials, weak magnetic nondestructive testing technique for ferromagnetic materials, and mathematical physics methods involved in mechanic analysis.
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Shi, Pp. Stress field of a radially functionally graded panel with a circular elastic inclusion under static anti-plane shear loading. J Mech Sci Technol 29, 1163–1173 (2015). https://doi.org/10.1007/s12206-015-0228-5
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DOI: https://doi.org/10.1007/s12206-015-0228-5