Skip to main content

Research Repository

See what's under the surface

Advanced Search

On the quasi-yield surface concept in plasticity theory

Soldatos, Dimitris; Triantafyllou, Savvas P.

Authors

Dimitris Soldatos

Savvas P. Triantafyllou



Abstract

In this paper we provide deeper insights into the concept of the quasi-yield surface in plasticity theory. More specifically, in this work, unlike the traditional treatments of plasticity where special emphasis is placed on an unambiguous definition of a yield criterion and the corresponding loading-unloading conditions, we place emphasis on the study of a general rate equation which is able to enforce elastic-plastic behavior. By means of this equation we discuss the fundamental concepts of the elastic range and the elastic domain. The particular case in which the elastic domain degenerates into its boundary leads to the quasi-yield surface concept. We exploit this concept further by discussing several theoretical issues related to it and by introducing a simple material model. The ability of the model in predicting several patterns of the real behavior of metals is assessed by representative numerical examples.

Journal Article Type Article
Publication Date Jul 12, 2017
Journal ZAMM
Print ISSN 0044-2267
Electronic ISSN 1521-4001
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 97
Issue 8
APA6 Citation Soldatos, D., & Triantafyllou, S. P. (2017). On the quasi-yield surface concept in plasticity theory. ZAMM, 97(8), doi:10.1002/zamm.201600133
DOI https://doi.org/10.1002/zamm.201600133
Keywords Rate-independent plasticity, Quasi-yield surface, Integrability conditions, Holonomy, Large plastic deformations
Publisher URL http://onlinelibrary.wiley.com/doi/10.1002/zamm.201600133/full
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information This is the accepted version of the following article: Soldatos, D. and Triantafyllou, S. P. (2017), On the quasi-yield surface concept in plasticity theory. Z. Angew. Math. Mech.. doi:10.1002/zamm.201600133 which has been published in final form at http://onlinelibrary.wi...002/zamm.201600133/full

Files

AcceptedManuscript (002).pdf (872 Kb)
PDF

Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





You might also like



Downloadable Citations

;