Parametric study on fatique failure using crack initiation method

This thesis presents the parametric study on fatigue failure using crack initiation method analysis. In order to investigate the fatigue failure of AISI/SAE 1045 steel by varying the microstrain parameters under different loading cases and predict the crack initiation life, compact tension specimen...

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Main Author:	Mohd Fadzrul Hisyam, Badarudin
Format:	Undergraduates Project Papers
Language:	English
Published:	2012
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/4653/ http://umpir.ump.edu.my/id/eprint/4653/ http://umpir.ump.edu.my/id/eprint/4653/1/cd6627_99.pdf

id	ump-4653
recordtype	eprints
spelling	ump-46532015-03-03T09:20:17Z http://umpir.ump.edu.my/id/eprint/4653/ Parametric study on fatique failure using crack initiation method Mohd Fadzrul Hisyam, Badarudin TA Engineering (General). Civil engineering (General) This thesis presents the parametric study on fatigue failure using crack initiation method analysis. In order to investigate the fatigue failure of AISI/SAE 1045 steel by varying the microstrain parameters under different loading cases and predict the crack initiation life, compact tension specimen model is used for this project. The finite element linear static analysis is done by using MSC Patran 2010 and MSC Nastran 2007 to determine the result of the stress distribution on the model. The fatigue analysis is conducted by using ANSYS 13.0 nCode Design Life to determine the microstrain value that initiates the dynamic and static failure under three loading cases; compression-compression, compression-tension and tension-tension. The obtained microstrain values are then used to obtain the fatigue damage, D which is then used to predict the crack initiation life of the material. Using Palmgren-Milner rule, the value of D will obtain the crack initiation life cycle of the material, Nf. Based on the result, it has found that the most critical loading case for the fatigue and static failure are the tension-tension. The crack initiation life of the material is at high cycle fatigue, and able to stand about 5 × 106 cycles without failure for every loading case. Meanwhile the static failure analysis has found that there is no crack initiation life, as it has failed at very low cycle in every loading case. 2012-06 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/4653/1/cd6627_99.pdf Mohd Fadzrul Hisyam, Badarudin (2012) Parametric study on fatique failure using crack initiation method. Faculty of Mechanical Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:68809&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Mohd Fadzrul Hisyam, Badarudin Parametric study on fatique failure using crack initiation method
description	This thesis presents the parametric study on fatigue failure using crack initiation method analysis. In order to investigate the fatigue failure of AISI/SAE 1045 steel by varying the microstrain parameters under different loading cases and predict the crack initiation life, compact tension specimen model is used for this project. The finite element linear static analysis is done by using MSC Patran 2010 and MSC Nastran 2007 to determine the result of the stress distribution on the model. The fatigue analysis is conducted by using ANSYS 13.0 nCode Design Life to determine the microstrain value that initiates the dynamic and static failure under three loading cases; compression-compression, compression-tension and tension-tension. The obtained microstrain values are then used to obtain the fatigue damage, D which is then used to predict the crack initiation life of the material. Using Palmgren-Milner rule, the value of D will obtain the crack initiation life cycle of the material, Nf. Based on the result, it has found that the most critical loading case for the fatigue and static failure are the tension-tension. The crack initiation life of the material is at high cycle fatigue, and able to stand about 5 × 106 cycles without failure for every loading case. Meanwhile the static failure analysis has found that there is no crack initiation life, as it has failed at very low cycle in every loading case.
format	Undergraduates Project Papers
author	Mohd Fadzrul Hisyam, Badarudin
author_facet	Mohd Fadzrul Hisyam, Badarudin
author_sort	Mohd Fadzrul Hisyam, Badarudin
title	Parametric study on fatique failure using crack initiation method
title_short	Parametric study on fatique failure using crack initiation method
title_full	Parametric study on fatique failure using crack initiation method
title_fullStr	Parametric study on fatique failure using crack initiation method
title_full_unstemmed	Parametric study on fatique failure using crack initiation method
title_sort	parametric study on fatique failure using crack initiation method
publishDate	2012
url	http://umpir.ump.edu.my/id/eprint/4653/ http://umpir.ump.edu.my/id/eprint/4653/ http://umpir.ump.edu.my/id/eprint/4653/1/cd6627_99.pdf
first_indexed	2023-09-18T21:59:26Z
last_indexed	2023-09-18T21:59:26Z
_version_	1777414299357020160

Parametric study on fatique failure using crack initiation method

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