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Fatigue Crack Growth Analysis On Square Prismatic With Embedded Cracks Under Tension Loading

One of the most important issues yet to be overcome by engineers is the integrity and reliability of engineering structures. This is to ensure the safety of the engineering structure is at the greatest since the catastrophic failures usually occur due to fatigue crack growth. Due to insufficient stu...

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Main Authors: M. S., Shaari, A. K., Ariffin, Takahashi, Akiyuki, S., Abdullah, Kikuchi, Masanori, M. R. M., Akramin
Format: Article
Language:English
Published: Faculty Mechanical Engineering, UMP 2017
Subjects:
T Technology (General)
Online Access:http://umpir.ump.edu.my/id/eprint/18971/7/Fatigue%20Crack%20Growth%20Analysis%20On%20Square%20Prismatic%20With%20Embedded%20Cracks%20Under%20Tension%20Loading.pdf
http://umpir.ump.edu.my/id/eprint/18971/
http://jmes.ump.edu.my/images/Volume_11_Issue1_2017/10_shaari%20et%20al.pdf
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spelling my.ump.umpir.189712017-11-17T07:59:22Z http://umpir.ump.edu.my/id/eprint/18971/ Fatigue Crack Growth Analysis On Square Prismatic With Embedded Cracks Under Tension Loading M. S., Shaari A. K., Ariffin Takahashi, Akiyuki S., Abdullah Kikuchi, Masanori M. R. M., Akramin T Technology (General) One of the most important issues yet to be overcome by engineers is the integrity and reliability of engineering structures. This is to ensure the safety of the engineering structure is at the greatest since the catastrophic failures usually occur due to fatigue crack growth. Due to insufficient studies on the fatigue embedded crack growth, the prismatic bar is chosen as the model of the structure. It is wise to select the solid bar since the analysis can be much simpler, thus making it easier to examine the behaviour of the fatigue crack growth. In this study, the metallic square prismatic with embedded cracks is analysed using S-version Finite Element Modelling (S-version FEM) under tension loading. The S-version FEM is an open source program, that is built from codes previously compiled as a program. The S-version FEM structured using the global-local overlay technique consists of two separate global and local meshes. By using the basic concept from the energy release rate and stress intensity factors (SIF), the behaviour of the fatigue crack growth is analysed. From the linear elastic fracture mechanics concept, the SIF is calculated using the virtual crack closure-integral method. The influences of different initial crack size and aspect ratios on the fatigue crack growth are investigated in this study. In addition, the SIF results from the S-version FEM are compared with the analytical solutions. From the analysis, the root mean square errors (RMSE) are performed to support the validation. The RMSE shows a very small error of 0.227, 0.086 and 0.3089 according to the aspect ratio of 0.5, 1.0 and 2.0, respectively. The results also show significant characteristics and behaviour of the SIF trend along the crack front, corresponding to different aspect ratios. From this study, the S-version FEM is suitable to be used to predict the fatigue crack growth for the cracks embedded in a structure. Subsequently, the S-version FEM is an open source program can be modified for increasingly complex engineering problems. Faculty Mechanical Engineering, UMP 2017-03 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/18971/7/Fatigue%20Crack%20Growth%20Analysis%20On%20Square%20Prismatic%20With%20Embedded%20Cracks%20Under%20Tension%20Loading.pdf M. S., Shaari and A. K., Ariffin and Takahashi, Akiyuki and S., Abdullah and Kikuchi, Masanori and M. R. M., Akramin (2017) Fatigue Crack Growth Analysis On Square Prismatic With Embedded Cracks Under Tension Loading. Journal of Mechanical Engineering and Sciences (JMES) , 11 (1). pp. 2511-2525. ISSN 2289-4659 (print); 2231-8380 (online) http://jmes.ump.edu.my/images/Volume_11_Issue1_2017/10_shaari%20et%20al.pdf DOI: 10.15282/jmes.11.1.2017.10.0231
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 T Technology (General)
spellingShingle T Technology (General)
M. S., Shaari
A. K., Ariffin
Takahashi, Akiyuki
S., Abdullah
Kikuchi, Masanori
M. R. M., Akramin
Fatigue Crack Growth Analysis On Square Prismatic With Embedded Cracks Under Tension Loading
description One of the most important issues yet to be overcome by engineers is the integrity and reliability of engineering structures. This is to ensure the safety of the engineering structure is at the greatest since the catastrophic failures usually occur due to fatigue crack growth. Due to insufficient studies on the fatigue embedded crack growth, the prismatic bar is chosen as the model of the structure. It is wise to select the solid bar since the analysis can be much simpler, thus making it easier to examine the behaviour of the fatigue crack growth. In this study, the metallic square prismatic with embedded cracks is analysed using S-version Finite Element Modelling (S-version FEM) under tension loading. The S-version FEM is an open source program, that is built from codes previously compiled as a program. The S-version FEM structured using the global-local overlay technique consists of two separate global and local meshes. By using the basic concept from the energy release rate and stress intensity factors (SIF), the behaviour of the fatigue crack growth is analysed. From the linear elastic fracture mechanics concept, the SIF is calculated using the virtual crack closure-integral method. The influences of different initial crack size and aspect ratios on the fatigue crack growth are investigated in this study. In addition, the SIF results from the S-version FEM are compared with the analytical solutions. From the analysis, the root mean square errors (RMSE) are performed to support the validation. The RMSE shows a very small error of 0.227, 0.086 and 0.3089 according to the aspect ratio of 0.5, 1.0 and 2.0, respectively. The results also show significant characteristics and behaviour of the SIF trend along the crack front, corresponding to different aspect ratios. From this study, the S-version FEM is suitable to be used to predict the fatigue crack growth for the cracks embedded in a structure. Subsequently, the S-version FEM is an open source program can be modified for increasingly complex engineering problems.
format Article
author M. S., Shaari
A. K., Ariffin
Takahashi, Akiyuki
S., Abdullah
Kikuchi, Masanori
M. R. M., Akramin
author_facet M. S., Shaari
A. K., Ariffin
Takahashi, Akiyuki
S., Abdullah
Kikuchi, Masanori
M. R. M., Akramin
author_sort M. S., Shaari
title Fatigue Crack Growth Analysis On Square Prismatic With Embedded Cracks Under Tension Loading
title_short Fatigue Crack Growth Analysis On Square Prismatic With Embedded Cracks Under Tension Loading
title_full Fatigue Crack Growth Analysis On Square Prismatic With Embedded Cracks Under Tension Loading
title_fullStr Fatigue Crack Growth Analysis On Square Prismatic With Embedded Cracks Under Tension Loading
title_full_unstemmed Fatigue Crack Growth Analysis On Square Prismatic With Embedded Cracks Under Tension Loading
title_sort fatigue crack growth analysis on square prismatic with embedded cracks under tension loading
publisher Faculty Mechanical Engineering, UMP
publishDate 2017
url http://umpir.ump.edu.my/id/eprint/18971/7/Fatigue%20Crack%20Growth%20Analysis%20On%20Square%20Prismatic%20With%20Embedded%20Cracks%20Under%20Tension%20Loading.pdf
http://umpir.ump.edu.my/id/eprint/18971/
http://jmes.ump.edu.my/images/Volume_11_Issue1_2017/10_shaari%20et%20al.pdf
_version_ 1643668576314327040
score 13.211869

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