Prediction of residual stress using explicit finite element method

This paper presents the residual stress behaviour under various values of friction coefficients and scratching displacement amplitudes. The investigation is based on numerical solution using explicit finite element method in quasi-static condition. Two different aeroengine materials, i.e. Super CMV...

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Main Authors:	Siswanto, Waluyo Adi, Nagentrau, M., Mohd Tobi, Abdul Latif
Format:	Article
Published:	UMP Publisher 2015
Subjects:	TJ Mechanical engineering and machinery TJ170-179 Mechanics applied to machinery. Dynamics
Online Access:	http://jmes.ump.edu.my http://jmes.ump.edu.my http://eprints.uthm.edu.my/7732/1/JMES_Siswanto_et_al.pdf

id	uthm-7732
recordtype	eprints
spelling	uthm-77322016-03-01T06:58:56Z Prediction of residual stress using explicit finite element method Siswanto, Waluyo Adi Nagentrau, M. Mohd Tobi, Abdul Latif TJ Mechanical engineering and machinery TJ170-179 Mechanics applied to machinery. Dynamics This paper presents the residual stress behaviour under various values of friction coefficients and scratching displacement amplitudes. The investigation is based on numerical solution using explicit finite element method in quasi-static condition. Two different aeroengine materials, i.e. Super CMV (Cr-Mo-V) and Titanium alloys (Ti-6Al- 4V), are examined. The usage of FEM analysis in plate under normal contact is validated with Hertzian theoretical solution in terms of contact pressure distributions. The residual stress distributions along with normal and shear stresses on elastic and plastic regimes of the materials are studied for a simple cylinder-on-flat contact configuration model subjected to normal loading, scratching and followed by unloading. The investigated friction coefficients are 0.3, 0.6 and 0.9, while scratching displacement amplitudes are 0.05 mm, 0.10 mm and 0.20 mm respectively. It is found that friction coefficient of 0.6 results in higher residual stress for both materials. Meanwhile, the predicted residual stress is proportional to the scratching displacement amplitude, higher displacement amplitude, resulting in higher residual stress. It is found that less residual stress is predicted on Super CMV material compared to Ti-6Al-4V material because of its high yield stress and ultimate strength. Super CMV material with friction coefficient of 0.3 and scratching displacement amplitude of 0.10 mm is recommended to be used in contact engineering applications due to its minimum possibility of fatigue. UMP Publisher 2015-12-01 Article PeerReviewed application/pdf http://eprints.uthm.edu.my/7732/1/JMES_Siswanto_et_al.pdf http://jmes.ump.edu.my Siswanto, Waluyo Adi and Nagentrau, M. and Mohd Tobi, Abdul Latif (2015) Prediction of residual stress using explicit finite element method. Journal of Mechanical Engineering and Sciences (JMES), 9 (Dec). pp. 1556-1570. ISSN 2289-4659 http://eprints.uthm.edu.my/7732/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Tun Hussein Onn Malaysia
building	UTHM Institutional Repository
collection	Online Access
topic	TJ Mechanical engineering and machinery TJ170-179 Mechanics applied to machinery. Dynamics
spellingShingle	TJ Mechanical engineering and machinery TJ170-179 Mechanics applied to machinery. Dynamics Siswanto, Waluyo Adi Nagentrau, M. Mohd Tobi, Abdul Latif Prediction of residual stress using explicit finite element method
description	This paper presents the residual stress behaviour under various values of friction coefficients and scratching displacement amplitudes. The investigation is based on numerical solution using explicit finite element method in quasi-static condition. Two different aeroengine materials, i.e. Super CMV (Cr-Mo-V) and Titanium alloys (Ti-6Al- 4V), are examined. The usage of FEM analysis in plate under normal contact is validated with Hertzian theoretical solution in terms of contact pressure distributions. The residual stress distributions along with normal and shear stresses on elastic and plastic regimes of the materials are studied for a simple cylinder-on-flat contact configuration model subjected to normal loading, scratching and followed by unloading. The investigated friction coefficients are 0.3, 0.6 and 0.9, while scratching displacement amplitudes are 0.05 mm, 0.10 mm and 0.20 mm respectively. It is found that friction coefficient of 0.6 results in higher residual stress for both materials. Meanwhile, the predicted residual stress is proportional to the scratching displacement amplitude, higher displacement amplitude, resulting in higher residual stress. It is found that less residual stress is predicted on Super CMV material compared to Ti-6Al-4V material because of its high yield stress and ultimate strength. Super CMV material with friction coefficient of 0.3 and scratching displacement amplitude of 0.10 mm is recommended to be used in contact engineering applications due to its minimum possibility of fatigue.
format	Article
author	Siswanto, Waluyo Adi Nagentrau, M. Mohd Tobi, Abdul Latif
author_facet	Siswanto, Waluyo Adi Nagentrau, M. Mohd Tobi, Abdul Latif
author_sort	Siswanto, Waluyo Adi
title	Prediction of residual stress using explicit finite element method
title_short	Prediction of residual stress using explicit finite element method
title_full	Prediction of residual stress using explicit finite element method
title_fullStr	Prediction of residual stress using explicit finite element method
title_full_unstemmed	Prediction of residual stress using explicit finite element method
title_sort	prediction of residual stress using explicit finite element method
publisher	UMP Publisher
publishDate	2015
url	http://jmes.ump.edu.my http://jmes.ump.edu.my http://eprints.uthm.edu.my/7732/1/JMES_Siswanto_et_al.pdf
first_indexed	2018-09-05T11:36:31Z
last_indexed	2018-09-05T11:36:31Z
_version_	1610767287806066688

Prediction of residual stress using explicit finite element method

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