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Numerical investigation of the mode III stress intensity factors in FGMs considering the effect of graded Poisson’s ratio

✍ Scribed by Rahmatollah Ghajar; Ali Shaghaghi Moghaddam

Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
758 KB
Volume
78
Category
Article
ISSN
0013-7944

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✦ Synopsis

a b s t r a c t

For cracks in functionally graded materials under pure mode three loading, this work makes use of J-integral in domain form to determine K III . This is done as a post-processing stage in the finite element context. Numerical computations are carried out for pennyshaped and circumferential cracks. For each crack, a sensitivity analysis is done to demonstrate the trend of K III with respect to the gradation indexes for modulus of elasticity and Poisson's ratio. It is realized that for a given geometry and boundary condition, K III depends on gradation of both modulus of elasticity and Poisson's ratio.

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