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Phase field modelling of dynamic thermal fracture in the context of irradiation damage

Schlüter, Alexander and Kuhn, Charlotte and Müller, Ralf and Tomut, Marilena and Trautmann, Christina and Weick, Helmut and Plate, Carolin (2017):
Phase field modelling of dynamic thermal fracture in the context of irradiation damage.
In: Continuum Mechanics and Thermodynamics, Springer, pp. 977-988, 29, (4), ISSN 0935-1175,
DOI: 10.1007/s00161-015-0456-z,
[Online-Edition: https://doi.org/10.1007/s00161-015-0456-z],
[Article]

Abstract

This work presents a continuum mechanics approach to model fracturing processes in brittle materials that are subjected to rapidly applied high-temperature gradients. Such a type of loading typically occurs when a solid is exposed to an intense high-energy particle beam that deposits a large amount of energy into a small sample volume. Given the rapid energy deposition leading to a fast temperature increase, dynamic effects have to be considered. Our existing phase field model for dynamic fracture is thus extended in a way that allows modelling of thermally induced fracture. A finite element scheme is employed to solve the governing partial differential equations numerically. Finally, the functionality of our model is illustrated by two examples.

Item Type: Article
Erschienen: 2017
Creators: Schlüter, Alexander and Kuhn, Charlotte and Müller, Ralf and Tomut, Marilena and Trautmann, Christina and Weick, Helmut and Plate, Carolin
Title: Phase field modelling of dynamic thermal fracture in the context of irradiation damage
Language: English
Abstract:

This work presents a continuum mechanics approach to model fracturing processes in brittle materials that are subjected to rapidly applied high-temperature gradients. Such a type of loading typically occurs when a solid is exposed to an intense high-energy particle beam that deposits a large amount of energy into a small sample volume. Given the rapid energy deposition leading to a fast temperature increase, dynamic effects have to be considered. Our existing phase field model for dynamic fracture is thus extended in a way that allows modelling of thermally induced fracture. A finite element scheme is employed to solve the governing partial differential equations numerically. Finally, the functionality of our model is illustrated by two examples.

Journal or Publication Title: Continuum Mechanics and Thermodynamics
Volume: 29
Number: 4
Publisher: Springer
Uncontrolled Keywords: Phase field, Thermal fracture, Irradiation damage
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Ion-Beam-Modified Materials
Date Deposited: 29 Dec 2017 10:12
DOI: 10.1007/s00161-015-0456-z
Official URL: https://doi.org/10.1007/s00161-015-0456-z
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