Dieses Dokument steht unter einer CreativeCommons Lizenz by-nc-nd/4.0
Verlagslink DOI: 10.1016/j.jmps.2016.03.002
Titel: Thermomechanical formulation of ductile damage coupled to nonlinear isotropic hardening and multiplicative viscoplasticity
Sprache: English
Autor/Autorin: Soyarslan, Celal 
Bargmann, Swantje 
Schlagwörter: Damage coupledelastoplasticity;Thermomechanical coupling;Finite strain;Finite elements;Numerical algorithms;Return map
Erscheinungsdatum: 5-Mär-2016
Verlag: Elsevier
Quellenangabe: Journal of the Mechanics and Physics of Solids (91): 334-358 (2016-06-01)
Zeitschrift oder Schriftenreihe: Journal of the mechanics and physics of solids 
Zusammenfassung (englisch): All rights reserved. In this paper, we present a thermomechanical framework which makes use of the internal variable theory of thermodynamics for damage-coupled finite viscoplasticity with nonlinear isotropic hardening. Damage evolution, being an irreversible process, generates heat. In addition to its direct effect on material's strength and stiffness, it causes deterioration of the heat conduction. The formulation, following the footsteps of Simó and Miehe (1992), introduces inelastic entropy as an additional state variable. Given a temperature dependent damage dissipation potential, we show that the evolution of inelastic entropy assumes a split form relating to plastic and damage parts, respectively. The solution of the thermomechanical problem is based on the so-called isothermal split. This allows the use of the model in 2D and 3D example problems involving geometrical imperfection triggered necking in an axisymmetric bar and thermally triggered necking of a 3D rectangular bar.
URI: http://tubdok.tub.tuhh.de/handle/11420/1860
DOI: 10.15480/882.1857
ISSN: 1873-4782
Institut: Kontinuums- und Werkstoffmechanik M-15 
Dokumenttyp: (wissenschaftlicher) Artikel
Enthalten in den Sammlungen:tub.dok

Dateien zu dieser Ressource:
Datei Beschreibung GrößeFormat
1-s2.0-S0022509616301442-main.pdfVerlags-PDF2,55 MBAdobe PDFÖffnen/Anzeigen
Zur Langanzeige


Letzte Woche
Letzten Monat
checked on 17.02.2019

Google ScholarTM



Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons Creative Commons