李同春, 杨志刚. 混凝土变参数等效应变损伤模型[J]. 工程力学, 2011, 28(3): 118-122.
引用本文: 李同春, 杨志刚. 混凝土变参数等效应变损伤模型[J]. 工程力学, 2011, 28(3): 118-122.
LI Tong-chun, YANG Zhi-gang. CONCRETE DAMAGE MODEL WITH VARIABLE PARAMETER EQUIVALENT STRAIN[J]. Engineering Mechanics, 2011, 28(3): 118-122.
Citation: LI Tong-chun, YANG Zhi-gang. CONCRETE DAMAGE MODEL WITH VARIABLE PARAMETER EQUIVALENT STRAIN[J]. Engineering Mechanics, 2011, 28(3): 118-122.

混凝土变参数等效应变损伤模型

CONCRETE DAMAGE MODEL WITH VARIABLE PARAMETER EQUIVALENT STRAIN

  • 摘要: 根据混凝土4种不同受力状态下应力-应变曲线的试验数据,建立了以等效应变作为参变量的变四参数等效应变损伤模型。该模型可以较好地描述复杂空间应力状态下混凝土的损伤本构关系,运用该模型计算得到的4种不同受力状态下的全过程应力-应变曲线与试验结果具有较好的一致性。

     

    Abstract: Based on the test stress-strain curves of concrete in four different stress states, an equivalent strain damage model with variable four-parameters is presented. This model could clearly describe the concrete damage constitutive relation in complicated stress states. Meanwhile, the stress-strain simulation results using this model for several different stress states agree with the test results well.

     

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