Rate correlation of the ABAQUS damage parameter in the concrete damage plasticity model and its realization method

ZHANG Yongjie; CHEN Li; XIE Puchu; TANG Baijian; SHEN Hanjin

doi:10.11883/bzycj-2021-0464

Volume 42 Issue 10

Oct. 2022

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ZHANG Yongjie, CHEN Li, XIE Puchu, TANG Baijian, SHEN Hanjin. Rate correlation of the ABAQUS damage parameter in the concrete damage plasticity model and its realization method[J]. Explosion And Shock Waves, 2022, 42(10): 103103. doi: 10.11883/bzycj-2021-0464

Citation:

ZHANG Yongjie, CHEN Li, XIE Puchu, TANG Baijian, SHEN Hanjin. Rate correlation of the ABAQUS damage parameter in the concrete damage plasticity model and its realization method[J]. Explosion And Shock Waves, 2022, 42(10): 103103. doi: 10.11883/bzycj-2021-0464

Citation:

ZHANG Yongjie, CHEN Li, XIE Puchu, TANG Baijian, SHEN Hanjin. Rate correlation of the ABAQUS damage parameter in the concrete damage plasticity model and its realization method[J]. Explosion And Shock Waves, 2022, 42(10): 103103. doi: 10.11883/bzycj-2021-0464

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Rate correlation of the ABAQUS damage parameter in the concrete damage plasticity model and its realization method

doi: 10.11883/bzycj-2021-0464

1.
School of Civil Engineering, Suzhou University of Science and Technology, Suzhou 215011, Jiangsu, China
2.
Engineering Research Center of Safety and Protection of Explosion & Impact of Ministry of Education, Southeast University, Nanjing 211189, Jiangsu, China

Received Date: 2021-11-09
Rev Recd Date: 2022-05-17

Available Online: 2022-05-20

Publish Date: 2022-10-31

Abstract

Abstract

The concrete damage plasticity (CDP) model, as commonly adopted in ABAQUS routine, fails to correlate damage parameters with strain rate. To accurately describe the damage of concrete under high strain rate, a modified CDP (MCDP) model considering the rate correlation of damage parameters was developed by defining a new strain rate field variable and compiling VUSDFLD subroutine. In the MCDP model, the tensile and compressive damage parameters can be obtained by the energy method, and the main solver can automatically update the damage parameters under different strain rates with the change of strain rate field variables. Under static load, the results calculated by the MCDP model are in good agreement with those by the CDP model. The MCDP model was then used to calculate the dynamic compression performance of concrete under high strain rate, indicating that the tensile and compressive damage parameters of concrete under different strain rates have a significant influence on its dynamic mechanical properties. The compiled VUSDFLD subroutine and the MCDP model can solve the problem of the correlation between damage and strain rate, investigate the dynamic response of reinforced concrete beams accurately, and provide a more reliable technical way in predicting the response and destruction of the concrete structures under severe dynamic loading such as explosion and impact.
- rate-dependent effect,
- concrete,
- damage factor,
- ABAQUS routine,
- damage plasticity model

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References(18)

References

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