Application of RPC Constitutive Model in FEA

Abstract:

The damage evolution equation of RPC is established based on 2-parameter Weibull distribution. The constitutive relation of RPC is then calculated based on the damage evolution equation. The constitutive model of RPC is optimized by comparing experimental constitutive curve to models corresponding to different threshold strain. Based on the definition of damage index in ABAQUS, the damaged evolution equation in ABAQUS is recalculated based on the optimized constitutive relation. the concrete damaged plasticity model in ABAQUS is obtained using the aforementioned method. And the concrete damaged plasticity model is applied to three compression member and three simply supported beams with different reinforcements. The calculated stress-strain curve and deformation of three compression member and three beams is in accordance with the deformation characteristics of experiments, which verified the effectiveness of the proposed concrete damaged plasticity model of RPC.

• Periodical: Applied Mechanics and Materials (Volumes 578-579)
• Pages: 25-30
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.578-579.25
• Online since: July 2014
• Authors: Ke Jia Yang*, Zi Ling Xie, Wei Li
• Keywords: Constitutive Model, Damage Index, Damage Threshold, Damaged Plasticity Model, Reactive Powder Concrete, Simply Supported Beam

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