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论文类型：会议论文

发表时间：2006-01-01

收录刊物：CPCI-S

页面范围：317-320

关键字：Cosserat Continuum Model; Strain Localization; Strain Softening; Non-associated Yield Criterion

摘要：Based on pressure-dependent elastoplastic Cosserat continuum model, progressive failure phenomena of the excavation and a retaining wall characterized by strain localization due to strain softening or adoption of non-associated yield criterion, are numerically simulated. Numerical results demonstrate the effectiveness of the Cosserat continuum finite elements in preserving the well-posedness of the localization problems widely existing in geotechnical engineering and in simulating the progressive failure phenomena characterized by strain localization due to strain softening or the non-associated yield criterion adopted.