TO STUDY AND ANALYSIS OF A MICRO MECHANICAL MODEL OF TWO DIFFERENT HARD STEEL OF DIFFERENT COMPOSITION BY VOLUME ELEMENT METHOD
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 5, Issue 9
Abstract
This work presented the Micromechanical modeling of flow curve of DP800 steel in uniaxial tension was studied using the representative volume element (RVE) method. Digimat and ABAQUS software were coupled and used to provide the required RVE model parameters and to perform simulations. Modeling results were validated using the experimental flow curves of the steels. It was found that the flow curve of DP800 steel was accurately predicted from the onset of plastic deformation up to the onset of necking. The RVE size of 12.7x12.7x12.7 μm and 7.9x7.9x7.9 μm containing 26 martensite islands were found as the optimum RVE sizes for DP800 steel. A mesh of C3D4 elements having a size of 0.050 μm was found to be the optimum element type and mesh.
Authors and Affiliations
Harshita Gupta*
Keywords
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