MATEC Web Conf.
Volume 275, 20191st International Conference on Advances in Civil Engineering and Materials (ACEM1) and 1st World Symposium on Sustainable Bio-composite Materials and Structures (SBMS1) (ACEM2018 and SBMS1)
|Number of page(s)||5|
|Section||New Materials and Structural Engineering|
|Published online||13 March 2019|
Damage plasticity model for passively confined concrete
1 Department of Disaster Mitigation for Structures, College of Civil Engineering, Tongji University, Shanghai 200092, China
2 School of Architecture Engineering, Nanjing Institute of Technology, Nanjing 211167, China.
* Corresponding author: firstname.lastname@example.org
This paper presents a modified concrete damage plasticity model (CDPM) for passively confined concrete within the concrete damage plasticity theory frame in ABAQUS. The modified CDPM can be used to simulate concrete under non-uniform passive confinement, for example, Fiber-reinforced polymer (FRP)-confined square concrete columns. The modification of CDPM includes a flow rule and a strain hardening/softening criterion in which dilation angle and yield stress are important parameters. Based on the true-triaxial experiment results of passively confined concrete, the dilation angle and yield stress were determined considering different confinement stiffness and non-uniform confinement stiffness ratio. Finally, the modified CDPM were incorporated in the ABAQUS model. The prediction of the finite element model of FRP-confined square concrete columns shows good prediction accuracy.
© The Authors, published by EDP Sciences, 2019
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