Strain Analysis of Surface Cracked Thin Flat Plate under Cycling Impact Loading Effect

In this work, strains and dynamic crack growth were studied and analyzed in thin flat plate with a surface crack at the center, subjected to cycling low velocity impact loading for two types of aluminum plates (2024, 6061). Experimental and numerical methods were implemented to achieve this research...

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Main Authors: Fathi Abdulsahib Alshamma, Ass. Prof. Dr., Bassam Ali Ahmed, Ass. Lect.
Format: Article
Language:English
Published: University of Baghdad 2015-12-01
Series:Journal of Engineering
Subjects:
Online Access:http://joe.uobaghdad.edu.iq/index.php/main/article/view/447
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author Fathi Abdulsahib Alshamma, Ass. Prof. Dr.
Bassam Ali Ahmed, Ass. Lect.
author_facet Fathi Abdulsahib Alshamma, Ass. Prof. Dr.
Bassam Ali Ahmed, Ass. Lect.
author_sort Fathi Abdulsahib Alshamma, Ass. Prof. Dr.
collection DOAJ
description In this work, strains and dynamic crack growth were studied and analyzed in thin flat plate with a surface crack at the center, subjected to cycling low velocity impact loading for two types of aluminum plates (2024, 6061). Experimental and numerical methods were implemented to achieve this research. Numerical analysis using program (ANSYS11-APDL) based on finite element method used to analysis the strains with respect to time at crack tip and then find the velocity of the crack growth under cycling impact loading. In the experimental work, a rig was designed and manufactured to applying the cycling impact loading on the cracked specimens. The grid points was screened in front of the crack tip to measure the elastic-plastic displacements in the x and y direction by grid method, from which the strains are calculated. The results show that the strains increase with increasing in the crack length. It was found that the cumulative number of cycles leads to increase in the strain values with increasing in crack growth velocity.
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spelling doaj.art-b0165ffa626e41c88ce2ffed13cca0792023-09-02T12:25:41ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392015-12-01214Strain Analysis of Surface Cracked Thin Flat Plate under Cycling Impact Loading EffectFathi Abdulsahib Alshamma, Ass. Prof. Dr.0Bassam Ali Ahmed, Ass. Lect.1College of Engineering-University of BaghdadDepartment of Electromechanical Engineering - University of TechnologyIn this work, strains and dynamic crack growth were studied and analyzed in thin flat plate with a surface crack at the center, subjected to cycling low velocity impact loading for two types of aluminum plates (2024, 6061). Experimental and numerical methods were implemented to achieve this research. Numerical analysis using program (ANSYS11-APDL) based on finite element method used to analysis the strains with respect to time at crack tip and then find the velocity of the crack growth under cycling impact loading. In the experimental work, a rig was designed and manufactured to applying the cycling impact loading on the cracked specimens. The grid points was screened in front of the crack tip to measure the elastic-plastic displacements in the x and y direction by grid method, from which the strains are calculated. The results show that the strains increase with increasing in the crack length. It was found that the cumulative number of cycles leads to increase in the strain values with increasing in crack growth velocity.http://joe.uobaghdad.edu.iq/index.php/main/article/view/447strain, velocity, crack tip, analysis, plate.
spellingShingle Fathi Abdulsahib Alshamma, Ass. Prof. Dr.
Bassam Ali Ahmed, Ass. Lect.
Strain Analysis of Surface Cracked Thin Flat Plate under Cycling Impact Loading Effect
Journal of Engineering
strain, velocity, crack tip, analysis, plate.
title Strain Analysis of Surface Cracked Thin Flat Plate under Cycling Impact Loading Effect
title_full Strain Analysis of Surface Cracked Thin Flat Plate under Cycling Impact Loading Effect
title_fullStr Strain Analysis of Surface Cracked Thin Flat Plate under Cycling Impact Loading Effect
title_full_unstemmed Strain Analysis of Surface Cracked Thin Flat Plate under Cycling Impact Loading Effect
title_short Strain Analysis of Surface Cracked Thin Flat Plate under Cycling Impact Loading Effect
title_sort strain analysis of surface cracked thin flat plate under cycling impact loading effect
topic strain, velocity, crack tip, analysis, plate.
url http://joe.uobaghdad.edu.iq/index.php/main/article/view/447
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