Computer simulation of creep damage at crack tip in short fibre composites |
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Authors: | Zhang Shuangyin L. W. Tsai |
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Affiliation: | (1) Institute of Mechanics, Chinese Academy of Sciences, 100080 Beijing, China |
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Abstract: | Creep damage at crack tip in short fibre composites has been simulated by using the finite element method (FEM). The well-known Schapery non-linear viscoelastic constitutive relationship was used to characterize time-dependent behaviour of the material. A modified recurrence equation was adopted to accelerate the iteration. Kachanov-Rabotnov's damage evolution law was employed. The growth of the damage zone with time around the crack tip was calculated and the results were shown with the so-called “digit photo”, which was produced by the printer. The project supported by the National Natural Science Foundation of China and the LNM of Institute of Mechanics, CAS |
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Keywords: | creep damage visco-elasticity finite element method short fibre composite computer simulation |
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