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Thermodynamics and Analysis of Predicted Responses of a Phase Field Model for Ductile Fracture

Tsakmakis, Aris ; Vormwald, Michael (2022):
Thermodynamics and Analysis of Predicted Responses of a Phase Field Model for Ductile Fracture. (Publisher's Version)
In: Materials, 14 (19), MDPI, e-ISSN 1996-1944,
DOI: 10.26083/tuprints-00021272,
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Item Type: Article
Origin: Secondary publication via sponsored Golden Open Access
Status: Publisher's Version
Title: Thermodynamics and Analysis of Predicted Responses of a Phase Field Model for Ductile Fracture
Language: English
Abstract:

The fundamental idea in phase field theories is to assume the presence of an additional state variable, the so-called phase field, and its gradient in the general functional used for the description of the behaviour of materials. In linear elastic fracture mechanics the phase field is employed to capture the surface energy of the crack, while in damage mechanics it represents the variable of isotropic damage. The present paper is concerned, in the context of plasticity and ductile fracture, with a commonly used phase field model in fracture mechanics. On the one hand, an appropriate framework for thermodynamical consistency is outlined. On the other hand, an analysis of the model responses for cyclic loading conditions and pure kinematic or pure isotropic hardening are shown.

Journal or Publication Title: Materials
Volume of the journal: 14
Issue Number: 19
Publisher: MDPI
Collation: 16 Seiten
Classification DDC: 600 Technik, Medizin, angewandte Wissenschaften > 600 Technik
Divisions: 13 Department of Civil and Environmental Engineering Sciences > Institute of Steel Constructions and Material Mechanics > Material Mechanics
Date Deposited: 13 May 2022 12:06
Last Modified: 13 May 2022 12:07
DOI: 10.26083/tuprints-00021272
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-212720
Additional Information:

This article belongs to the Special Issue Computational and Experimental Mechanics of Engineering Materials and Structures

Keywords: phase field; damage; plasticity; hardening; non-standard thermodynamics

URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/21272
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