Dynamic stress intensity factors around two parallel cracks in a functionally graded layer bonded to dissimilar half-planes subjected to anti-plane incident harmonic stress waves |
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Authors: | Li Ma Lin-Zhi Wu Zhen-Gong Zhou |
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Affiliation: | Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, China |
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Abstract: | The time-harmonic problem of determining the stress field around two parallel cracks in functionally graded materials (FGMs) is studied. The Fourier transform technique is used to reduce the boundary conditions to four simultaneous integral equations which are then solved by expanding the differences of crack surface displacements in a series. The unknown coefficients in the series are obtained by the Schmidt method. Numerical calculations are carried out for dynamic stress intensity factors (DSIF) in FGMs. |
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Keywords: | Functionally graded materials Two parallel cracks Dynamic stress intensity factors Schmidt method |
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