Finite Strain Formulation of Elasto-Plasticity without Yield Surface: Theory, Parameter Identification and Applications
Cyprian Suchocki , Paweł Skoczylas
AbstractIn this study, a finite strain formulation of elasto-plasticity without the yield surface is analyzed. It is found that the presented model allows for a good description of the elasto-plastic response for many metallic materials. Furthermore, it is noted that the model involving a limited number of material parameters is able to capture such effects as indefinite elastic limit, strain hardening, strain softening and the Bauschinger effect. An algorithm for the evaluation of constants is described and the determined values are given for NC high carbon tool steel, copper, brass, Inconel alloy, tungsten heavy alloy and aluminum.
|Journal series||Journal of Theoretical and Applied Mechanics, ISSN 1429-2955|
|Publication size in sheets||0.55|
|Keywords in English||constitutive equation, plasticity, metals, material constants|
|Score|| = 15.0, 28-11-2017, ArticleFromJournal|
= 15.0, 28-11-2017, ArticleFromJournal
|Publication indicators||: 2016 = 0.683 (2) - 2016=0.822 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.