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Prediction of Fatigue Life on Lower Suspension Arm Subjected To Variable Amplitude Loading

This paper focuses on the finite element based fatigue life prediction of lower suspension arm, subjected to variable amplitude loading. The objectives of this study are to predict fatigue life of the lower suspension arm using stress-life and strain-life methods, to investigate the effect of the me...

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Main Authors: M. M., Rahman, M. M., Noor, K., Kadirgama, R. A., Bakar, Z., Husin
Format: Conference or Workshop Item
Language:English
Published: 2010
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://umpir.ump.edu.my/id/eprint/1770/1/PREDICTION_OF_FATIGUE_LIFE_ON_LOWER_SUSPENSION_ARM.pdf
http://umpir.ump.edu.my/id/eprint/1770/
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spelling my.ump.umpir.17702018-01-25T05:42:46Z http://umpir.ump.edu.my/id/eprint/1770/ Prediction of Fatigue Life on Lower Suspension Arm Subjected To Variable Amplitude Loading M. M., Rahman M. M., Noor K., Kadirgama R. A., Bakar Z., Husin TJ Mechanical engineering and machinery This paper focuses on the finite element based fatigue life prediction of lower suspension arm, subjected to variable amplitude loading. The objectives of this study are to predict fatigue life of the lower suspension arm using stress-life and strain-life methods, to investigate the effect of the mean stress. The lower suspension arm was developed using computer aided design software. The finite element modeling and analysis were performed utilizing the finite element analysis code. Mesh was created using tetrahedral 10 nodes element. The finite element analysis then was performed using MSC.NATRAN code using the linear elastic approach. In addition, the fatigue life was predicted using the stress-life and strain-life approach subjected to variable amplitude loading. The three types of variable amplitude are considered in this study. The TET10 and maximum principal stress were considered in the linear static stress analysis and the critical location. From the fatigue analysis, Goodman method is conservative method when subjected to SAETRN and SAESUS loading histories while SWT method is more conservative in SAEBKT loading histories. Stress-life method is capable to give higher fatigue life when subjected to bracket mean loading (SAEBKT) while strain-life method is capable to give higher fatigue life when subjected to positive mean loading (SAETRN) and negative mean loading (SAESUS). From the material optimization, 7175-T73 aluminum alloy is suitable material of the suspension arm. 2010 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/1770/1/PREDICTION_OF_FATIGUE_LIFE_ON_LOWER_SUSPENSION_ARM.pdf M. M., Rahman and M. M., Noor and K., Kadirgama and R. A., Bakar and Z., Husin (2010) Prediction of Fatigue Life on Lower Suspension Arm Subjected To Variable Amplitude Loading. In: National Conference in Mechanical Engineering Research and Postgraduate Studies (2nd NCMER 2010), 3-4 December 2010 , UMP Pekan, Pahang. .
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
M. M., Rahman
M. M., Noor
K., Kadirgama
R. A., Bakar
Z., Husin
Prediction of Fatigue Life on Lower Suspension Arm Subjected To Variable Amplitude Loading
description This paper focuses on the finite element based fatigue life prediction of lower suspension arm, subjected to variable amplitude loading. The objectives of this study are to predict fatigue life of the lower suspension arm using stress-life and strain-life methods, to investigate the effect of the mean stress. The lower suspension arm was developed using computer aided design software. The finite element modeling and analysis were performed utilizing the finite element analysis code. Mesh was created using tetrahedral 10 nodes element. The finite element analysis then was performed using MSC.NATRAN code using the linear elastic approach. In addition, the fatigue life was predicted using the stress-life and strain-life approach subjected to variable amplitude loading. The three types of variable amplitude are considered in this study. The TET10 and maximum principal stress were considered in the linear static stress analysis and the critical location. From the fatigue analysis, Goodman method is conservative method when subjected to SAETRN and SAESUS loading histories while SWT method is more conservative in SAEBKT loading histories. Stress-life method is capable to give higher fatigue life when subjected to bracket mean loading (SAEBKT) while strain-life method is capable to give higher fatigue life when subjected to positive mean loading (SAETRN) and negative mean loading (SAESUS). From the material optimization, 7175-T73 aluminum alloy is suitable material of the suspension arm.
format Conference or Workshop Item
author M. M., Rahman
M. M., Noor
K., Kadirgama
R. A., Bakar
Z., Husin
author_facet M. M., Rahman
M. M., Noor
K., Kadirgama
R. A., Bakar
Z., Husin
author_sort M. M., Rahman
title Prediction of Fatigue Life on Lower Suspension Arm Subjected To Variable Amplitude Loading
title_short Prediction of Fatigue Life on Lower Suspension Arm Subjected To Variable Amplitude Loading
title_full Prediction of Fatigue Life on Lower Suspension Arm Subjected To Variable Amplitude Loading
title_fullStr Prediction of Fatigue Life on Lower Suspension Arm Subjected To Variable Amplitude Loading
title_full_unstemmed Prediction of Fatigue Life on Lower Suspension Arm Subjected To Variable Amplitude Loading
title_sort prediction of fatigue life on lower suspension arm subjected to variable amplitude loading
publishDate 2010
url http://umpir.ump.edu.my/id/eprint/1770/1/PREDICTION_OF_FATIGUE_LIFE_ON_LOWER_SUSPENSION_ARM.pdf
http://umpir.ump.edu.my/id/eprint/1770/
_version_ 1643664459660525568
score 13.211869

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