An Analytical Model for the Identification of the Threshold of Stress Intensity Factor Range for Crack Growth

An Analytical Model for the Identification of the Threshold of Stress Intensity Factor Range for Crack Growth

The value of the stress intensity factor (SIF) range threshold ΔKth for fatigue crack growth (FCG) depends highly on its experimental identification. The identification and application of ΔKth are not well established as its determination depends on various factors including experimental, numerical,...

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Main Authors: Marzio Grasso, Antonio De Iorio, Yigeng Xu, George Haritos, M. Mohin, Yong K. Chen
Format: Article
Language:English
Published: Hindawi Limited 2017-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2017/3014172
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spelling doaj-cd690aaa685548e599d1bb06cc47bfb62020-11-24T20:43:40ZengHindawi LimitedAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/30141723014172An Analytical Model for the Identification of the Threshold of Stress Intensity Factor Range for Crack GrowthMarzio Grasso0Antonio De Iorio1Yigeng Xu2George Haritos3M. Mohin4Yong K. Chen5School of Engineering and Technology, University of Hertfordshire, College Lane Campus, Hatfield AL10 9AB, UKDepartment of Industrial Engineering, University of Naples Federico II, 80125 Naples, ItalySchool of Aerospace, Transport and Manufacturing, Cranfield University, Cranfield, Bedfordshire MK43 0AL, UKSchool of Engineering and Technology, University of Hertfordshire, College Lane Campus, Hatfield AL10 9AB, UKSchool of Engineering and Technology, University of Hertfordshire, College Lane Campus, Hatfield AL10 9AB, UKSchool of Engineering and Technology, University of Hertfordshire, College Lane Campus, Hatfield AL10 9AB, UKThe value of the stress intensity factor (SIF) range threshold ΔKth for fatigue crack growth (FCG) depends highly on its experimental identification. The identification and application of ΔKth are not well established as its determination depends on various factors including experimental, numerical, or analytical techniques used. A new analytical model which can fit the raw FCG experimental data is proposed. The analytical model proposed is suitable to fit with high accuracy the experimental data and is capable of estimating the threshold SIF range. The comparison between the threshold SIF range identified with the model proposed and those found in the literature is also discussed. ΔKth identified is found to be quite accurate and consistent when compared to the literature with a maximum deviation of 5.61%. The accuracy with which the analytical model is able to fit the raw data is also briefly discussed.http://dx.doi.org/10.1155/2017/3014172
collection DOAJ
language English
format Article
sources DOAJ
author Marzio Grasso
Antonio De Iorio
Yigeng Xu
George Haritos
M. Mohin
Yong K. Chen
spellingShingle Marzio Grasso
Antonio De Iorio
Yigeng Xu
George Haritos
M. Mohin
Yong K. Chen
An Analytical Model for the Identification of the Threshold of Stress Intensity Factor Range for Crack Growth
Advances in Materials Science and Engineering
author_facet Marzio Grasso
Antonio De Iorio
Yigeng Xu
George Haritos
M. Mohin
Yong K. Chen
author_sort Marzio Grasso
title An Analytical Model for the Identification of the Threshold of Stress Intensity Factor Range for Crack Growth
title_short An Analytical Model for the Identification of the Threshold of Stress Intensity Factor Range for Crack Growth
title_full An Analytical Model for the Identification of the Threshold of Stress Intensity Factor Range for Crack Growth
title_fullStr An Analytical Model for the Identification of the Threshold of Stress Intensity Factor Range for Crack Growth
title_full_unstemmed An Analytical Model for the Identification of the Threshold of Stress Intensity Factor Range for Crack Growth
title_sort analytical model for the identification of the threshold of stress intensity factor range for crack growth
publisher Hindawi Limited
series Advances in Materials Science and Engineering
issn 1687-8434
1687-8442
publishDate 2017-01-01
description The value of the stress intensity factor (SIF) range threshold ΔKth for fatigue crack growth (FCG) depends highly on its experimental identification. The identification and application of ΔKth are not well established as its determination depends on various factors including experimental, numerical, or analytical techniques used. A new analytical model which can fit the raw FCG experimental data is proposed. The analytical model proposed is suitable to fit with high accuracy the experimental data and is capable of estimating the threshold SIF range. The comparison between the threshold SIF range identified with the model proposed and those found in the literature is also discussed. ΔKth identified is found to be quite accurate and consistent when compared to the literature with a maximum deviation of 5.61%. The accuracy with which the analytical model is able to fit the raw data is also briefly discussed.
url http://dx.doi.org/10.1155/2017/3014172
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