TANG Hong-xiang, LI Xi-kui. Finite element analysis of Cosserat continuum for progressive failure and limit bearing capacity of soil foundation[J]. 2007, 28(11).
TANG Hong-xiang, LI Xi-kui. Finite element analysis of Cosserat continuum for progressive failure and limit bearing capacity of soil foundation[J]. 2007, 28(11).DOI:
Based on the derived finite element formulations of Cosserat continuum
progressive failure phenomena of the soil foundation
characterized by strain localization due to strain softening
are numerically analyzed. The influence of progressive failure process on the limit bearing capacity is illustrated by the developments of equivalent plastic strain. Numerical results demonstrate the effectiveness of the Cosserat continuum finite elements in preserving the well-posedness of the localization problem and simulating the progressive failure phenomena characterized by strain localization due to strain softening
necessity of the progressive failure analysis for earth structures such as the soil foundation etc.. Simultaneously it is pointed out that the unsafe results are to be obtained as the limit bearing capacity of strain softening soil foundation is analyzed by traditional theories of limit equilibrium and limit analysis.