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The material models consider both the work hardening and annealing assumptions for the chosen material.
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The sophisticated concrete and reinforcement bar material models, considering the strain rate effects, dynamic increasing factor and equation of state for concrete, are applied in simulating the damage mechanism and dynamic response.
Furthermore, a visco-plastic material model considering material damage and implemented recently as an ABAQUS user material (UMAT) has been also applied for simulations.
This material model considers heterogeneous material properties with geospatial distribution that more closely reflect the actual field conditions on a typical roadway.
During laminate hardening the material model considers fiber rotation, plastic strain accumulation and inter-fiber damage to provide accurate ply stress information even at large deformations.
This paper reports a meso-structure model of multi-axial multi-layer warp-knitted (MMWK) composites from an elastic plastic material model considering the strain rate effect for the components of the MMWK composite.
Because FDR is a composite material, it does not fit neatly into any of the existing material characterization models considered by the AASHTOWare Pavement ME design (PavementME) software.
Such predictions require material models that consider not only the initial failure but also the responses of severely damaged composites.
Two hyper-elastic material models were considered, namely the Mooney-Rivlin model and the Neo-Hookean model.
Three material models were considered: (i) elastic-perfectly plastic, (ii) engineering stress strain and (iii) true stress true strain.
Based on the validation results, the advantages and disadvantages of using of two material models were considered.
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