Investigation the delay of crack using stop drilled holes on mild steel

Many failures in engineering applications or machine components have been caused by a crack initiated from points at which stress was concentrated. As the stress concentration level is higher than a critical value, continuous crack-growth results in failure in the machine components. Crack initiatio...

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Main Author:	Ridzuan Shah Razi, Varathau Rajoo
Format:	Undergraduates Project Papers
Language:	English English English English English
Published:	2009
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/1021/ http://umpir.ump.edu.my/id/eprint/1021/1/Ridzuan_Shah_Razi_Varathau_Rajoo.pdf http://umpir.ump.edu.my/id/eprint/1021/4/Investigate%20the%20delay%20of%20crack%20initiation%20using%20stop%20drilled%20holes%20on%20mild%20steel%20-%20references.pdf http://umpir.ump.edu.my/id/eprint/1021/5/Investigate%20the%20delay%20of%20crack%20initiation%20using%20stop%20drilled%20holes%20on%20mild%20steel%20-%20table%20of%20content.pdf http://umpir.ump.edu.my/id/eprint/1021/6/Investigate%20the%20delay%20of%20crack%20initiation%20using%20stop%20drilled%20holes%20on%20mild%20steel%20-%20abstract.pdf http://umpir.ump.edu.my/id/eprint/1021/27/Investigate%20the%20delay%20of%20crack%20initiation%20using%20stop%20drilled%20holes%20on%20mild%20steel%20-%20chapter%201.pdf

id	ump-1021
recordtype	eprints
spelling	ump-10212017-03-07T07:12:35Z http://umpir.ump.edu.my/id/eprint/1021/ Investigation the delay of crack using stop drilled holes on mild steel Ridzuan Shah Razi, Varathau Rajoo TA Engineering (General). Civil engineering (General) Many failures in engineering applications or machine components have been caused by a crack initiated from points at which stress was concentrated. As the stress concentration level is higher than a critical value, continuous crack-growth results in failure in the machine components. Crack initiation behavior has been evaluated to prevent an early failure of machine equipment. Delaying the crack initiation is important for the maintenance of machine elements as well as for the detection of crack initiation. Hence, the main objective of this study is to investigate the delay of crack using stop drilled holes. The investigation was based on the diameter of the stop drilled holes and the arrangement of the stop drilled holes. Both experiment and finite element analysis were done in order to validate the result. The experiment was carried out by using tensile test to obtain maximum applied load to the specimen while the finite element analysis was analyzed by using ALGOR V22 software to obtain the stress of the specimen. The experimental results and the finite element analysis results show that the crack initiation life of the specimen was longer when the diameter of the stop drilled holes increased. The further the location of the stop drilled holes with the slits location, the longer crack initiation life of the specimen. Thus, the influence of the stop drilled holes on the crack initiation life has been evaluated. 2009 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/1021/1/Ridzuan_Shah_Razi_Varathau_Rajoo.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/1021/4/Investigate%20the%20delay%20of%20crack%20initiation%20using%20stop%20drilled%20holes%20on%20mild%20steel%20-%20references.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/1021/5/Investigate%20the%20delay%20of%20crack%20initiation%20using%20stop%20drilled%20holes%20on%20mild%20steel%20-%20table%20of%20content.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/1021/6/Investigate%20the%20delay%20of%20crack%20initiation%20using%20stop%20drilled%20holes%20on%20mild%20steel%20-%20abstract.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/1021/27/Investigate%20the%20delay%20of%20crack%20initiation%20using%20stop%20drilled%20holes%20on%20mild%20steel%20-%20chapter%201.pdf Ridzuan Shah Razi, Varathau Rajoo (2009) Investigation the delay of crack using stop drilled holes on mild steel. Faculty of Mechanical Engineering, Universiti Malaysia Pahang.
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English English English English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Ridzuan Shah Razi, Varathau Rajoo Investigation the delay of crack using stop drilled holes on mild steel
description	Many failures in engineering applications or machine components have been caused by a crack initiated from points at which stress was concentrated. As the stress concentration level is higher than a critical value, continuous crack-growth results in failure in the machine components. Crack initiation behavior has been evaluated to prevent an early failure of machine equipment. Delaying the crack initiation is important for the maintenance of machine elements as well as for the detection of crack initiation. Hence, the main objective of this study is to investigate the delay of crack using stop drilled holes. The investigation was based on the diameter of the stop drilled holes and the arrangement of the stop drilled holes. Both experiment and finite element analysis were done in order to validate the result. The experiment was carried out by using tensile test to obtain maximum applied load to the specimen while the finite element analysis was analyzed by using ALGOR V22 software to obtain the stress of the specimen. The experimental results and the finite element analysis results show that the crack initiation life of the specimen was longer when the diameter of the stop drilled holes increased. The further the location of the stop drilled holes with the slits location, the longer crack initiation life of the specimen. Thus, the influence of the stop drilled holes on the crack initiation life has been evaluated.
format	Undergraduates Project Papers
author	Ridzuan Shah Razi, Varathau Rajoo
author_facet	Ridzuan Shah Razi, Varathau Rajoo
author_sort	Ridzuan Shah Razi, Varathau Rajoo
title	Investigation the delay of crack using stop drilled holes on mild steel
title_short	Investigation the delay of crack using stop drilled holes on mild steel
title_full	Investigation the delay of crack using stop drilled holes on mild steel
title_fullStr	Investigation the delay of crack using stop drilled holes on mild steel
title_full_unstemmed	Investigation the delay of crack using stop drilled holes on mild steel
title_sort	investigation the delay of crack using stop drilled holes on mild steel
publishDate	2009
url	http://umpir.ump.edu.my/id/eprint/1021/ http://umpir.ump.edu.my/id/eprint/1021/1/Ridzuan_Shah_Razi_Varathau_Rajoo.pdf http://umpir.ump.edu.my/id/eprint/1021/4/Investigate%20the%20delay%20of%20crack%20initiation%20using%20stop%20drilled%20holes%20on%20mild%20steel%20-%20references.pdf http://umpir.ump.edu.my/id/eprint/1021/5/Investigate%20the%20delay%20of%20crack%20initiation%20using%20stop%20drilled%20holes%20on%20mild%20steel%20-%20table%20of%20content.pdf http://umpir.ump.edu.my/id/eprint/1021/6/Investigate%20the%20delay%20of%20crack%20initiation%20using%20stop%20drilled%20holes%20on%20mild%20steel%20-%20abstract.pdf http://umpir.ump.edu.my/id/eprint/1021/27/Investigate%20the%20delay%20of%20crack%20initiation%20using%20stop%20drilled%20holes%20on%20mild%20steel%20-%20chapter%201.pdf
first_indexed	2023-09-18T21:53:47Z
last_indexed	2023-09-18T21:53:47Z
_version_	1777413943525900288

Investigation the delay of crack using stop drilled holes on mild steel

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