混凝土变参数等效应变损伤模型

详细信息

CONCRETE DAMAGE MODEL WITH VARIABLE PARAMETER EQUIVALENT STRAIN

(1. College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China; 2. School of Architectural Engineering, Nanchang University, Nanchang 330031, China)

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。
- 混凝土 /
- 变参数 /
- 等效应变 /
- 损伤变量 /
- 本构关系
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.
- concrete /
- variable parameter /
- equivalent strain /
- damage variable /
- constitutive relation

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(1. College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China; 2. School of Architectural Engineering, Nanchang University, Nanchang 330031, China)