CDP Model Parameters Calculation and Value Method Verification
[1]Li Qingfu,Kuang Yihang,Guo Wei,et al.CDP Model Parameters Calculation and Value Method Verification[J].Journal of Zhengzhou University (Engineering Science),2021,42(02):44-49.[doi:10.13705/j.issn.1671-6833.2020.06.002]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
42
Number of periods:
2021 02
Page number:
44-49
Column:
Public date:
2021-04-12
- Title:
- CDP Model Parameters Calculation and Value Method Verification
- Keywords:
- ABAQUS; concrete damaged plasticity model; model parameters; damage factor; constitutive model
- CLC:
- -
- Abstract:
- To apply the concrete stress-strain curve in the concrete structure design code to the ABAQUS concrete plastic damage model, the calculation method of the concrete plastic damage model parameter and the value range of the damage factor were studied, taking a simple supported beam bending test as an example, the truncation of the stress-strain curve of concrete and the value of the damage factor were calibrated. In order to verify the rationality and accuracy of the calculation method of the model parameters and the values in this paper, three sets of specimens including 2 simply supported beams and 1 shear wall were selected for finite element simulation. The results showed that the simulation results and tests of the beam cracking load, ultimate load, load-span deflection curve and shear wall horizontal force-displacement curve were in good agreement and could meet the requirements of engineering accuracy. The truncation of the stress-strain curve of concrete and the value of the damage factor were accurate and reliable.
- References:
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[1] LUBLINER J,OLIVER J,OLLER S,et al.A plastic-damage model for concrete[J].International journal of solids and structures, 1989,25(3):299-326.[2] LEE J,FENVES G L.Plastic-damage model for cyclic loading of concrete structures[J].Journal of engineering mechanics, 1998,124(8):892-900.[3] 聂建国，王宇航. ABAQUS中混凝土本构模型用于模拟结构静力行为的比较研究[J]. 工程力学, 2013, 30(4): 59-67.[4] 李杰,吴建营.混凝土弹塑性损伤本构模型研究 Ⅰ:基本公式[J].土木工程学报,2005,38(9):14-20.[5] GENIKOMSOU A S, POLAK M A. Finite element analysis of punching shear of concrete slabs using damaged plasticity model in ABAQUS[J]. Engineering structures, 2015，98: 38-48.
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Last Update:
2021-05-30