Employment of damage plasticity constitutive model for concrete members subjected to high strain-rate

Altaee, Mohammed and Kadhim, Majid and Altayee, Sarmed and Adheem, Ali (2020) Employment of damage plasticity constitutive model for concrete members subjected to high strain-rate. In: IMDC-SDSP 2020, 28-30 June 2020, Cyberspace.

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Concrete damage plasticity (CDP) model is used to model the concrete damage through using ABAQUS software. 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 load and high-strain rate. This study aims to focus on numerical modelling of impact-loaded concrete, examine and calibrate the above CDP model parameters using three-dimensional FE modelling. Several values of dilation angles, ψ, of 30 to 550 and eccentricity parameter of 0.1 to 0.2 have been used to capture the test behaviour. The model tensile softening behaviour was also investigated using three models, bilinear stress-strain, tri-linear stress-strain and stress-crack opening displacement. The FE results revealed that the value of dilation angle ranged 45-500, the eccentricity parameter and tri-linear stress-strain model of tensile softening provided better correlations with test results in terms of displacement-time plots and cracking paths.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: concrete damage plasticity finite element abaqus strain-rate
Subjects: Q Science > QA Mathematics > QA76 Computer software
Depositing User: EAI Editor III.
Date Deposited: 26 Feb 2021 16:12
Last Modified: 26 Feb 2021 16:12
URI: https://eprints.eudl.eu/id/eprint/1029

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