Abstract
A constitutive modeling is proposed to describe the elastoplastic behavior of materials. The model response for uniaxial loading of as-received and pre-strained materials is investigated. The most important characteristic of the model for as-received material is the consideration of a von Mises yield criterion that is valid from onset of loading. The same concept as the one for as-received material is followed to deal with the elastoplastic behavior of pre-strained material. However, a proportionality concept is also introduced in this case to calculate the plastic deformation. After the implementation of the model in ABAQUS procedure by creation of an appropriate user material subroutine, the results of finite element analysis are studied and validated by some experimental results obtained from uniaxial test.
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Aryanpour, G., Farzaneh, M. & Mrad, H. Finite element analysis of elastoplastic modeling: application to one-dimensional loading of as-received and pre-strained materials. Acta Mech 223, 911–922 (2012). https://doi.org/10.1007/s00707-011-0606-8
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DOI: https://doi.org/10.1007/s00707-011-0606-8