2022年12月17日 · 下篇主要讲如何通过Excel画混凝土本构关系曲线，以及如何输入CDP各参数值。 1 混凝土应力—应变关系 在ABAQUS中，CDP模型采用的是混凝土在单轴受力状态下的应力和非弹性应变，这里的非弹性应变是根据混凝土的单轴应力-应变关系（混凝土本构关系）换算出来的，常见混凝土本构关系有3种： GB5…

2021年12月1日 · This model is based on the ground-breaking studies recorded in recently completed studies to improve and develop the original concrete damage plasticity (CDP) model in ABAQUS software. In this CDP model, the stress-strain curves in compressive behavior and tensile behavior during the softening phase (after stress reaches peak strength) consider ...

The concrete damaged plasticity model in Abaqus: provides a general capability for modeling concrete and other quasi-brittle materials in all types of structures (beams, trusses, shells, and solids);

2021年10月1日 · How to create Concrete Damaged Plasticity in Abaqus with minor entries and calcutations. Content may be subject to copyright. Abaqus. (keys) for the material (line 19 in fig.1). The dictionary...

2019年9月5日 · The concrete damaged-plasticity (CDP) model available in ABAQUS is one of the most commonly used concrete material models readily found in the literature. However, the CDP model was designed only for applications in which concrete is subjected to monotonic, cyclic, and/or dynamic load under low confining pressures [Simulia, 2013] .

2020年5月15日 · The purpose of this paper is to study the method for determining the parameters of ABAQUS CDP model based on the concrete stress-strain curve provided by the code for concrete structure design.

Among several input parameters that should be defined in CDP model, the dilation angle (ψ), eccentricity parameter and tensile behaviour, have been identified as a significant influence on the finite element (FE) results for concrete modelling under static loading while limited studies examined these parameters for concrete subjected to impact ...

2024年12月8日 · 我们先介绍一下在《混凝土结构设计规范》附录C中给出的普通混凝土单轴受拉和单轴受压作用下的应力应变曲线公式，其中给出了曲线的计算参数损伤演化参数dt和dc，很多人会错把这个损伤演化参数错认为是ABAQUS中的损伤因子，输入软件后会发生报错。 从上面公式可以看出，《混规》中给出的应力应变曲线模型是采用我们前文中给出的模型2有损弹性模型，在曲线损伤阶段的应力由损伤弹模Ed= (1-d)×E0乘以总应变ε得到。 因此该模型中是不考虑塑性应 …

在对两种表达式进行分析对比的基础上,对ABAQUS软件自带的混凝土塑性损伤模型 (CDP模型)参数选取进行了分析,并给出了该模型参数的选取和调整方法。 为了验证模型参数选取的合理性和可靠性,采用ABAQUS软件对算例试验构件进行了有限元数值分析,并将数值分析所得的荷载-位移曲线与试验测试曲线进行对比。 结果表明:所选的参数能够满足数值分析的精度要求。

2024年7月4日 · 为了分析不同强度混凝土裂缝贯通与损伤演化的内在规律，本研究基于混凝土塑性损伤(Concrete damaged plasticity, CDP)模型的理论框架，并结合Sidoroff损伤理论，建立了Zhang-Hou损伤计算模型。