Evaluation of Critical Stress Intensity Factor (Kic) for Plates Using New Crack Extension Technique

The technique of crack extension is applied to the computation of critical stress intensity factor in linear elastic fracture mechanics for cracked plates in tension for different crack configuration (i.e. central crack, edge crack, and double edge crack). The new technique uses the Brown approximat...

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Main Author: Ameen Ahmed Nassar
Format: Article
Language:English
Published: Unviversity of Technology- Iraq 2013-04-01
Series:Engineering and Technology Journal
Online Access:https://etj.uotechnology.edu.iq/article_81981_1d53df80fa76cb806184915800a0ac44.pdf
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author Ameen Ahmed Nassar
author_facet Ameen Ahmed Nassar
author_sort Ameen Ahmed Nassar
collection DOAJ
description The technique of crack extension is applied to the computation of critical stress intensity factor in linear elastic fracture mechanics for cracked plates in tension for different crack configuration (i.e. central crack, edge crack, and double edge crack). The new technique uses the Brown approximate solutions for stress intensity factors and the Westergaard analytical solutions for stress and displacement near a crack tip in finite plate to calculate crack extension during each load step and then calculating the critical stress intensity factor using an incremental procedure. A matlab program was developed for the purpose of this work, which proved to be a good tool for the computation of critical stress intensity factors for cracked plates. The results were in good agreement with results of other methods available in the literature.
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spelling doaj.art-a13ad2c9a4a0437ea257f6d2e390a5af2024-02-04T17:34:50ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582013-04-01314A73074010.30684/etj.31.4A.1181981Evaluation of Critical Stress Intensity Factor (Kic) for Plates Using New Crack Extension TechniqueAmeen Ahmed NassarThe technique of crack extension is applied to the computation of critical stress intensity factor in linear elastic fracture mechanics for cracked plates in tension for different crack configuration (i.e. central crack, edge crack, and double edge crack). The new technique uses the Brown approximate solutions for stress intensity factors and the Westergaard analytical solutions for stress and displacement near a crack tip in finite plate to calculate crack extension during each load step and then calculating the critical stress intensity factor using an incremental procedure. A matlab program was developed for the purpose of this work, which proved to be a good tool for the computation of critical stress intensity factors for cracked plates. The results were in good agreement with results of other methods available in the literature.https://etj.uotechnology.edu.iq/article_81981_1d53df80fa76cb806184915800a0ac44.pdf
spellingShingle Ameen Ahmed Nassar
Evaluation of Critical Stress Intensity Factor (Kic) for Plates Using New Crack Extension Technique
Engineering and Technology Journal
title Evaluation of Critical Stress Intensity Factor (Kic) for Plates Using New Crack Extension Technique
title_full Evaluation of Critical Stress Intensity Factor (Kic) for Plates Using New Crack Extension Technique
title_fullStr Evaluation of Critical Stress Intensity Factor (Kic) for Plates Using New Crack Extension Technique
title_full_unstemmed Evaluation of Critical Stress Intensity Factor (Kic) for Plates Using New Crack Extension Technique
title_short Evaluation of Critical Stress Intensity Factor (Kic) for Plates Using New Crack Extension Technique
title_sort evaluation of critical stress intensity factor kic for plates using new crack extension technique
url https://etj.uotechnology.edu.iq/article_81981_1d53df80fa76cb806184915800a0ac44.pdf
work_keys_str_mv AT ameenahmednassar evaluationofcriticalstressintensityfactorkicforplatesusingnewcrackextensiontechnique