Predicting the Nonlinear Material Behaviour under Monotonic and Cyclic loading of SA333 and SS3304 Steels
Journal Title: International Journal of engineering Research and Applications - Year 2017, Vol 7, Issue 9
Abstract
Nonlinearity naturally arises in a true, rigorous mathematical formulation of physical problems. One of the most common nonlinearity is the material nonlinearity where the stress-strain response behaves nonlinearly. The main objective of this paper is to predict the material nonlinearity with the use of constitutive material model. To this end, the specimen is modeled with the eight nodded solid elements. One end of the specimen is fixed while the prescribed displacement is specified at the other end. The Chaboche model parameters are fitted first by matching the experimental stress-strain curve [4] with the finite element simulations. After that the response of the specimen is predicted when subjected to different displacement amplitudes i.e. completely reversed loading, cyclic tension loading and fluctuating ramp loading
Authors and Affiliations
Krupa H. Desai, Dilip C. Joshi
Keywords
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