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Copula-Based Quantification of Probabilistic Dependence Configurations of Material Parameters in Damage Constitutive Modeling of Concrete
Publisher: ASCE
Abstract: The constitutive model of concrete is the key basis for nonlinear analysis of concrete structures under disastrous dynamic actions, e.g., earthquakes. The material parameters of the constitutive model of concrete are ...
A Temporal Multiscale Model for Fatigue Damage of Concrete
Publisher: ASCE
Abstract: A temporal multiscale model was developed to characterize the damage that evolves in concrete structures throughout a complete scenario of dynamic fatigue loading. The damage was decomposed into quasistatic and dynamic ...
Implicit Gradient Delocalization Method for Force-Based Frame Element
Publisher: American Society of Civil Engineers
Abstract: In this study, a novel force-based frame element with delocalization is developed to address localization issues induced by material strain softening. A regularization procedure for section deformations is introduced on ...
A Multifield Model for Early-Age Massive Concrete Structures: Hydration, Damage, and Creep
Publisher: ASCE
Abstract: A multifield model of the early-age behavior of massive concrete structures is presented. The hydration process and the thermal evolution are both described through a coupled chemo-thermal model that predicts the degree ...
Decomposition of the Shear Capacity of Steel Fiber–Reinforced Concrete Coupling Beams
Publisher: ASCE
Abstract: Steel fiber–reinforced concrete (SFRC) is extensively used in coupling beams due to its superior mechanical properties. In this study, the two-parameter kinematic theory is modified by introducing the consideration of the ...
Coupled Creep-Damage-Plasticity Model for Concrete under Long-Term Loading
Publisher: ASCE
Abstract: A damage-plasticity model is extended to account for the effects of simultaneously occurring stiffness degradation, residual deformation, and creep. Assuming the additivity of small strains, the model combines damage ...