Thermodynamic Formulation of Plastic Work Hardening Materials
Ristinmaa, Matti LU
(1999)
In Journal of Engineering Mechanics
125(152).
p.152-155
- Abstract
- Thermodynamic formulation of elastoplastic or viscoplastic models using the internal variable approach currently does not include models using the plastic work as a hardening variable. This means that many realistic material models do not fit into the current thermodynamic framework. An approach to extend the thermodynamic framework to include models where plastic work is used as a hardening variable is considered. This approach can even be extended to viscoplasticity where the change of the quasistatic yield function is controlled by the plastic work. As an application of the approach, the Lade-Kim model is considered. This nonassociated plasticity model uses plastic work as a hardening variable, and it is capable of predicting the... (More)
- Thermodynamic formulation of elastoplastic or viscoplastic models using the internal variable approach currently does not include models using the plastic work as a hardening variable. This means that many realistic material models do not fit into the current thermodynamic framework. An approach to extend the thermodynamic framework to include models where plastic work is used as a hardening variable is considered. This approach can even be extended to viscoplasticity where the change of the quasistatic yield function is controlled by the plastic work. As an application of the approach, the Lade-Kim model is considered. This nonassociated plasticity model uses plastic work as a hardening variable, and it is capable of predicting the behavior of frictional materials, in particular soils. It is shown that the model can be described in a general thermodynamic framework and that it is well defined in a thermodynamic sense. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2223706
- author
- Ristinmaa, Matti
LU
- organization
- publishing date
- 1999
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Thermodynamics, elasto-plasticity, nonassociated plasticity
- in
- Journal of Engineering Mechanics
- volume
- 125
- issue
- 152
- pages
- 152 - 155
- publisher
- American Society of Civil Engineers (ASCE)
- external identifiers
-
- scopus:0033075359
- ISSN
- 1943-7889
- DOI
- 10.1061/(ASCE)0733-9399(1999)125:2(152)
- language
- English
- LU publication?
- yes
- id
- 55614419-da69-4a5d-aac2-7077d9ca6f94 (old id 2223706)
- date added to LUP
- 2016-04-04 08:46:22
- date last changed
- 2022-01-29 03:59:04
@article{55614419-da69-4a5d-aac2-7077d9ca6f94,
abstract = {{Thermodynamic formulation of elastoplastic or viscoplastic models using the internal variable approach currently does not include models using the plastic work as a hardening variable. This means that many realistic material models do not fit into the current thermodynamic framework. An approach to extend the thermodynamic framework to include models where plastic work is used as a hardening variable is considered. This approach can even be extended to viscoplasticity where the change of the quasistatic yield function is controlled by the plastic work. As an application of the approach, the Lade-Kim model is considered. This nonassociated plasticity model uses plastic work as a hardening variable, and it is capable of predicting the behavior of frictional materials, in particular soils. It is shown that the model can be described in a general thermodynamic framework and that it is well defined in a thermodynamic sense.}},
author = {{Ristinmaa, Matti}},
issn = {{1943-7889}},
keywords = {{Thermodynamics; elasto-plasticity; nonassociated plasticity}},
language = {{eng}},
number = {{152}},
pages = {{152--155}},
publisher = {{American Society of Civil Engineers (ASCE)}},
series = {{Journal of Engineering Mechanics}},
title = {{Thermodynamic Formulation of Plastic Work Hardening Materials}},
url = {{http://dx.doi.org/10.1061/(ASCE)0733-9399(1999)125:2(152)}},
doi = {{10.1061/(ASCE)0733-9399(1999)125:2(152)}},
volume = {{125}},
year = {{1999}},
}