Two-scale damage modeling of brittle composites
作者： Jacob Fish , Qing Yu
DOI: 10.1016/S0266-3538(01)00115-4
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摘要: Abstract This paper is aimed at developing a non-local theory for obtaining numerical approximation to boundary-value problem describing damage phenomena in ceramic composite material. The mathematical homogenization method based on double-scale asymptotic expansion generalized account effects heterogeneous media. A closed-form expression relating local fields the overall strain and derived. Non-local developed by introducing concept of phase (stress, strain, free energy density, release rate, etc.). Numerical results our model were found be good agreement with experimental data from 4-point bend tests conducted beams made Blackglas™/Nextel 5-harness satin weave.
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