Cohesive zone modeling of creep–fatigue crack propagation with dwell time

Cohesive zone modeling of creep–fatigue crack propagation with dwell time

In engineering application, a quantitative description of both fatigue and creep damage mechanisms is demanded for high-temperature alloy. This work employs the cohesive zone model to numerically simulate the crack propagation in a nickel-based super-alloy. Two separate damage evolution equations ar...

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Bibliographic Details
Main Authors: Wen Li, Xiaohong Yang, Guobin Zhang, Yunhua Ma
Format: Article
Language:English
Published: SAGE Publishing 2017-10-01
Series:Advances in Mechanical Engineering
Online Access:https://doi.org/10.1177/1687814017721144
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spelling doaj-79926c870f5248bb87101ad083fe8d6c2020-11-25T02:48:07ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402017-10-01910.1177/1687814017721144Cohesive zone modeling of creep–fatigue crack propagation with dwell timeWen Li0Xiaohong Yang1Guobin Zhang2Yunhua Ma3Beijing Institute of Control Engineering, China Aerospace Science and Technology Corporation, Beijing, ChinaBeijing Institute of Control Engineering, China Aerospace Science and Technology Corporation, Beijing, ChinaBeijing Electric Vehicle Co., Ltd, Beijing, ChinaBeijing Institute of Control Engineering, China Aerospace Science and Technology Corporation, Beijing, ChinaIn engineering application, a quantitative description of both fatigue and creep damage mechanisms is demanded for high-temperature alloy. This work employs the cohesive zone model to numerically simulate the crack propagation in a nickel-based super-alloy. Two separate damage evolution equations are introduced into the cohesive zone model to describe the fatigue and creep damage, respectively. Effects of temperature and loading hold period are discussed. The comparison shows a reasonable agreement between numerical results and experimental observations and confirms the potential of cohesive zone model for more complex loading conditions in engineering.https://doi.org/10.1177/1687814017721144
collection DOAJ
language English
format Article
sources DOAJ
author Wen Li
Xiaohong Yang
Guobin Zhang
Yunhua Ma
spellingShingle Wen Li
Xiaohong Yang
Guobin Zhang
Yunhua Ma
Cohesive zone modeling of creep–fatigue crack propagation with dwell time
Advances in Mechanical Engineering
author_facet Wen Li
Xiaohong Yang
Guobin Zhang
Yunhua Ma
author_sort Wen Li
title Cohesive zone modeling of creep–fatigue crack propagation with dwell time
title_short Cohesive zone modeling of creep–fatigue crack propagation with dwell time
title_full Cohesive zone modeling of creep–fatigue crack propagation with dwell time
title_fullStr Cohesive zone modeling of creep–fatigue crack propagation with dwell time
title_full_unstemmed Cohesive zone modeling of creep–fatigue crack propagation with dwell time
title_sort cohesive zone modeling of creep–fatigue crack propagation with dwell time
publisher SAGE Publishing
series Advances in Mechanical Engineering
issn 1687-8140
publishDate 2017-10-01
description In engineering application, a quantitative description of both fatigue and creep damage mechanisms is demanded for high-temperature alloy. This work employs the cohesive zone model to numerically simulate the crack propagation in a nickel-based super-alloy. Two separate damage evolution equations are introduced into the cohesive zone model to describe the fatigue and creep damage, respectively. Effects of temperature and loading hold period are discussed. The comparison shows a reasonable agreement between numerical results and experimental observations and confirms the potential of cohesive zone model for more complex loading conditions in engineering.
url https://doi.org/10.1177/1687814017721144
work_keys_str_mv AT wenli cohesivezonemodelingofcreepfatiguecrackpropagationwithdwelltime
AT xiaohongyang cohesivezonemodelingofcreepfatiguecrackpropagationwithdwelltime
AT guobinzhang cohesivezonemodelingofcreepfatiguecrackpropagationwithdwelltime
AT yunhuama cohesivezonemodelingofcreepfatiguecrackpropagationwithdwelltime
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