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Stress Intensity Factors for an Interlaminar Crack in Composites under Arbitrary Crack Surface Loadings
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 Title & Authors
Stress Intensity Factors for an Interlaminar Crack in Composites under Arbitrary Crack Surface Loadings
Lee, Gang-Yong; Park, Mun-Bok; Kim, Seong-Ho;
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 Abstract
A model is constructed to evaluate the stress intensity factors(SIFs) for composites with an interlaminar crack subjected to as arbitrary crack surface loading. A mixed boundary value problem is formulated by Fourier integral transform method and a Fredholm integral equation of the second kind is derived. The integral equation is solved numerically and the mode I and II SIFs are evaluated for various shear modulus ratios between each layer, crack length to layer thickness, each term of crack surface polynomial loading and the number of layers. The mode I and II SIFs for the E- glass/epoxy composites as well as the hybrid composites are also evaluated.
 Keywords
Stress Intensity Factor;Center Crack;Arbitrary Loading;Dual Integral Equations;Composites;
 Language
Korean
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