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Fatigue crack growth analysis using Bootstrap S‑version finite element model

The objective of this paper was to predict the fatigue life, surface crack and initial flaw size distribution of fatigue surface crack growth. A statistical analysis is carried out to evaluate the distributions of initial flaw size as an input uncertain parameter. The prediction of remaining life to...

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Main Authors: M. R. M., Akramin, M. N. M., Husnain, Z. L., Chuan, Takahashi, Akiyuki
Format: Article
Language:English
Published: Springer Berlin Heidelberg 2020
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://umpir.ump.edu.my/id/eprint/28260/8/Fatigue%20crack%20growth%20analysis%20using%20Bootstrap%20S1.pdf
http://umpir.ump.edu.my/id/eprint/28260/
https://doi.org/10.1007/s40430-020-2268-8
https://doi.org/10.1007/s40430-020-2268-8
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spelling my.ump.umpir.282602020-06-29T01:55:47Z http://umpir.ump.edu.my/id/eprint/28260/ Fatigue crack growth analysis using Bootstrap S‑version finite element model M. R. M., Akramin M. N. M., Husnain Z. L., Chuan Takahashi, Akiyuki TJ Mechanical engineering and machinery The objective of this paper was to predict the fatigue life, surface crack and initial flaw size distribution of fatigue surface crack growth. A statistical analysis is carried out to evaluate the distributions of initial flaw size as an input uncertain parameter. The prediction of remaining life to schedule the maintenance is important to prevent serious accidents from occurring. The three-point and four-point bendings are analysed using the Bootstrap S-version finite element model (BootstrapS-FEM) whereby the bootstrap resampling method is embedded into S-version finite element model. The validation process is conducted between the predictions, deterministic and previous experimental results. The BootstrapS-FEM with lognormal distribution shows a more accurate trend against normal distribution based on the coefficient of determination, normalised root-mean-square error and mean absolute percentage error. The prediction of fatigue life for three-point and four-point bendings by BootstrapS-FEM was well compared with previous experimental results within range from 5 to 17% of percentage errors. These errors were acceptable to the purpose of prediction which are less than 20%. The uncertainties in structural components are considered by the upper and lower bounds in probabilistic analysis. The BootstrapS-FEM results show a better agreement with previous experimental results and deterministic solutions. Initial flaw size distributions are evaluated to prior scheduled inspection for the prevention of a catastrophic failure. The risk of a catastrophic failure can be evaluated based on the initial crack size distribution and specified fatigue life for ensuring safety and reliability of the fatigue crack structures. Springer Berlin Heidelberg 2020-03-20 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/28260/8/Fatigue%20crack%20growth%20analysis%20using%20Bootstrap%20S1.pdf M. R. M., Akramin and M. N. M., Husnain and Z. L., Chuan and Takahashi, Akiyuki (2020) Fatigue crack growth analysis using Bootstrap S‑version finite element model. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 42 (184). pp. 1-21. ISSN 1806-3691 https://doi.org/10.1007/s40430-020-2268-8 https://doi.org/10.1007/s40430-020-2268-8
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. R. M., Akramin
M. N. M., Husnain
Z. L., Chuan
Takahashi, Akiyuki
Fatigue crack growth analysis using Bootstrap S‑version finite element model
description The objective of this paper was to predict the fatigue life, surface crack and initial flaw size distribution of fatigue surface crack growth. A statistical analysis is carried out to evaluate the distributions of initial flaw size as an input uncertain parameter. The prediction of remaining life to schedule the maintenance is important to prevent serious accidents from occurring. The three-point and four-point bendings are analysed using the Bootstrap S-version finite element model (BootstrapS-FEM) whereby the bootstrap resampling method is embedded into S-version finite element model. The validation process is conducted between the predictions, deterministic and previous experimental results. The BootstrapS-FEM with lognormal distribution shows a more accurate trend against normal distribution based on the coefficient of determination, normalised root-mean-square error and mean absolute percentage error. The prediction of fatigue life for three-point and four-point bendings by BootstrapS-FEM was well compared with previous experimental results within range from 5 to 17% of percentage errors. These errors were acceptable to the purpose of prediction which are less than 20%. The uncertainties in structural components are considered by the upper and lower bounds in probabilistic analysis. The BootstrapS-FEM results show a better agreement with previous experimental results and deterministic solutions. Initial flaw size distributions are evaluated to prior scheduled inspection for the prevention of a catastrophic failure. The risk of a catastrophic failure can be evaluated based on the initial crack size distribution and specified fatigue life for ensuring safety and reliability of the fatigue crack structures.
format Article
author M. R. M., Akramin
M. N. M., Husnain
Z. L., Chuan
Takahashi, Akiyuki
author_facet M. R. M., Akramin
M. N. M., Husnain
Z. L., Chuan
Takahashi, Akiyuki
author_sort M. R. M., Akramin
title Fatigue crack growth analysis using Bootstrap S‑version finite element model
title_short Fatigue crack growth analysis using Bootstrap S‑version finite element model
title_full Fatigue crack growth analysis using Bootstrap S‑version finite element model
title_fullStr Fatigue crack growth analysis using Bootstrap S‑version finite element model
title_full_unstemmed Fatigue crack growth analysis using Bootstrap S‑version finite element model
title_sort fatigue crack growth analysis using bootstrap s‑version finite element model
publisher Springer Berlin Heidelberg
publishDate 2020
url http://umpir.ump.edu.my/id/eprint/28260/8/Fatigue%20crack%20growth%20analysis%20using%20Bootstrap%20S1.pdf
http://umpir.ump.edu.my/id/eprint/28260/
https://doi.org/10.1007/s40430-020-2268-8
https://doi.org/10.1007/s40430-020-2268-8
_version_ 1672610891057594368
score 13.211869

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