ISSN: 2349-5162

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Published in:

Volume 4 Issue 7
July-2017
eISSN: 2349-5162

Unique Identifier

JETIR1707043

Page Number

238-243

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Title

Crack initiation and growth in AISI 4140H-a brake disc under thermo-mechanical fatigue by analytically and experimentally.

ISSN

2349-5162

Cite This Article

"Crack initiation and growth in AISI 4140H-a brake disc under thermo-mechanical fatigue by analytically and experimentally.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.4, Issue 7, page no.238-243, July 2017, Available :http://www.jetir.org/papers/JETIR1707043.pdf

Abstract

Fatigue failure of engineering components occurs due to growth of initial crack and its propagation at micro structural level under thermal and mechanical, cyclic loading. A certain number of motorbike disc shown the presence of small crack only after few thousand miles. Because of road conditions, harsh braking and uneven cooling cycles motorbike brake disc are subjected to cyclic temperature & mechanical loading. A complex combination of thermal and mechanical cyclic loading subjected to component for crack initiation and growth by thermal fatigue. This study focus on the evaluation of a surface crack in specimen like AISI 4140H expose to thermal and mechanical cyclic loading. The specimen is proposed in this study having initial surface crack both in plane stress and in plane strain condition. Analytical calculations are done to study effect of actual road conditions on disc material. Experimental facilities used for generating heating and cooling cycle. Heat flux in the specimen due to temperature gradient in both the conditions affects the crack growth.

Key Words

Fatigue Fracture, Crack initiation, Thermal and Mechanical Loading, Temperature Gradient, Stress Intensity Factor, Heat flux, Motorbike Disc.

Cite This Article

"Crack initiation and growth in AISI 4140H-a brake disc under thermo-mechanical fatigue by analytically and experimentally.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.4, Issue 7, page no. pp238-243, July 2017, Available at : http://www.jetir.org/papers/JETIR1707043.pdf

Publication Details

Published Paper ID: JETIR1707043
Registration ID: 223014
Published In: Volume 4 | Issue 7 | Year July-2017
DOI (Digital Object Identifier):
Page No: 238-243
ISSN Number: 2349-5162

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Cite This Article

"Crack initiation and growth in AISI 4140H-a brake disc under thermo-mechanical fatigue by analytically and experimentally.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.4, Issue 7, page no. pp238-243, July 2017, Available at : http://www.jetir.org/papers/JETIR1707043.pdf




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