Finite-Element Simulation of Progressive Cross-Section Ellipticity of Single Crystal Samples under Uniaxial Tension

Abstract:

The influence of the crystallographic orientation, the level of axial strain and the test temperature on the progressive cross-section ellipticity of single crystal samples under uniaxial tension is analyzed in order to improve axial strain measurement in experiments. The direct three-dimensional finite element modeling of elasto-plastic deformation process of single-crystal initially cylindrical samples is used with taking into account finite strains, slip mechanisms and necking.

• Periodical: Applied Mechanics and Materials (Volumes 725-726)
• Pages: 937-942
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.725-726.937
• Online since: January 2015
• Authors: Michail Beliaev*, Artem S. Semenov
• Keywords: Cross-Section Ellipticity, Crystal Orientation, Elasticity, Finite Strain, Necking, Plasticity, Single Crystal Superalloys

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