Fracture Mechanics Analysis of Functionally Graded Material Based on Finite Element Method

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In this paper, the fracture problem of functionally graded material (FGM) was studied, and the shear modulus was assumed to be an exponential function. The influences of inhomogeneous parameter, crack size and crack angle on the stress intensity factors have been analyzed by the finite element method. The results indicated that the stress intensity factors of mode I decreased with the increasing of the crack angle, the stress intensity factors of mode II increased with the increasing of the crack angle, and the crack stress intensity factor of mode I and mode II decreased with the increasing of the inhomogeneous parameters at crack tips, which was of certain directive significance for the FGM design and manufacture in the actual engineering.

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787-790

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August 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] U. Leushake, A. N. Winter, General Aspects of FGM Fabrication by Powder Stacking,. Materials Science Forum, vol. 308, pp.13-18, (1999).

DOI: 10.4028/www.scientific.net/msf.308-311.13

Google Scholar

[2] G. Y. Huang, Y. S. Wang, D. Gross. Fracture Analysis of Functionally Graded Coating Plane Deformation., European Journal of Mechanics A/Solids, vol. 22, no. 6, pp.535-544, (2003).

DOI: 10.1016/s0997-7538(03)00064-0

Google Scholar

[3] P. Gu, R. J. Asaro, Crack deflection in functionally graded materials., Int. solids structure, vol. 34, pp.3085-3098, (1997).

DOI: 10.1016/s0020-7683(96)00175-8

Google Scholar

[4] F. Delale, F. Erdogan. The Crack Problem for a Nonhomogeneous Plane., Journal of Applied Mechanics, vol. 50, no. 3, pp.609-614, (1983).

DOI: 10.1115/1.3167098

Google Scholar

[5] G. Y. Huang, Y. S. Wang, S. W. Yu. Fracture Analysis of a Functionally Graded Interficial Zone under Plane Deformation., International Journal of Solids and Structures, vol. 41, no. 5, pp.731-743, (2004).

DOI: 10.1016/j.ijsolstr.2003.08.007

Google Scholar

[6] Z. Q. Cheng, Z. Zhong, Fracture analysis of functionally graded interfacial zone between dissimilar homogeneous materials., Science in China, Series G, vol. 49, no. 5, pp.540-552, (2006).

DOI: 10.1007/s11433-006-2004-0

Google Scholar

[7] H. C. Zhang, W. Tan, Y. D. Li. Effect of the Transitional Gradient of Material Property on the Mechanical Behavior of a Non-homogeneous Interlayer., Computational Materials Science, vol. 42, no. 1, pp.122-129, (2008).

DOI: 10.1016/j.commatsci.2007.06.016

Google Scholar