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Abstract Based on the nonlocal elastoplastic theory，with the introduction of material characteristic length into classic elastoplastic model，considering the relation between material characteristic length and plastifying level，the variable minute representative volumtric elements are formed in the whole model. Then the nonlocal average is conducted for plastic multiplier in the variable minute representative volumetric elements. The evolution and interactions of microstructures in material are considered indirectly；and a nonlocal elastoplastic model is set up. Through the finite element theory，the nonlocal elastoplastic model is applied to the simulation of end friction effect of a compression plane plate. The result shows that，with the nonlocal elastoplastic model，higher computation efficiency and more rational results can be obtained.
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Received: 05 June 2006
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WANG Zhaoyu1, 2, ZHAO Weihua1, 2*, JU Nengpan1, 2, LIN Qinghua1, 2, TAN Lin1, 2, HU Xiaolong1, 2. Constitutive model for shear creep behavior of fault gouge containing crushed rock#br#[J]. , 2026, 45(4): 1266-1276. |
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