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Article

Numerical Evaluation of Fatigue Crack Growth of Structural Steels Using Energy Release Rate with VCCT

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Smart Manufacturing Research Institute & School of Mechanical Engineering, Universiti Tecknologi MARA (UiTM), Shah Alam 40450, Malaysia
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Department of Materials & Metallurgical Engineering, University of Ilorin, P.M.B 1515, Ilorin 240003, Nigeria
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Institute of Structural Durability and Railway Technology, Graz University of Technology, 8010 Graz, Austria
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Department of Mechanical Engineering, University of Ilorin, P.M.B 1515, Ilorin 240003, Nigeria
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Department of Mechanical Engineering, Montanuniversität Leoben, 8700 Leoben, Austria
*
Author to whom correspondence should be addressed.
Academic Editors: Alberto Campagnolo and José A.F.O. Correia
Appl. Sci. 2022, 12(5), 2641; https://doi.org/10.3390/app12052641
Received: 1 February 2022 / Revised: 25 February 2022 / Accepted: 28 February 2022 / Published: 3 March 2022
(This article belongs to the Special Issue Fracture and Fatigue Assessments of Structural Components Ⅱ)
This research presents the numerical evaluation of fatigue crack growth of structural steels S355 and S960 based on Paris’ law parameters (C and m) that are experimentally determined with a single edge notched tension (SENT) specimen using optical and crack gauge measurements on an electromotive resonance machine at constant amplitude load. The sustainable technique is replacing destructive, time-consuming and expensive approaches in structural integrity. The crack propagation is modelled using the 3D finite element method (FEM) with adaptive remeshing of tetrahedral elements along with the crack initiator elements provided in simulation software for crack propagation based on linear elastic fracture mechanics (LEFM). The stress intensity is computed based on the evaluation of energy release rates according to Irwin’s crack closure integral with applied cyclic load of 62.5 MPa, 100 MPa and 150 MPa and stress ratios of R = 0 and 0.1. In order to achieve optimized mesh size towards load cycle and computational time, mesh and re-mesh sensitivity analysis is conducted. The results indicate that the virtual crack closure technique VCCT-based 3D FEM shows acceptable agreement compared to the experimental investigation with the percentage error up to 7.9% for S355 and 12.8% for S960 structural steel. View Full-Text
Keywords: crack growth; structural steel; fracture mechanic; finite element model crack growth; structural steel; fracture mechanic; finite element model
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MDPI and ACS Style

Busari, Y.O.; Manurung, Y.H.P.; Leitner, M.; Shuaib-Babata, Y.L.; Mat, M.F.; Ibrahim, H.K.; Simunek, D.; Sulaiman, M.S. Numerical Evaluation of Fatigue Crack Growth of Structural Steels Using Energy Release Rate with VCCT. Appl. Sci. 2022, 12, 2641. https://doi.org/10.3390/app12052641

AMA Style

Busari YO, Manurung YHP, Leitner M, Shuaib-Babata YL, Mat MF, Ibrahim HK, Simunek D, Sulaiman MS. Numerical Evaluation of Fatigue Crack Growth of Structural Steels Using Energy Release Rate with VCCT. Applied Sciences. 2022; 12(5):2641. https://doi.org/10.3390/app12052641

Chicago/Turabian Style

Busari, Yusuf O., Yupiter H.P. Manurung, Martin Leitner, Yusuf L. Shuaib-Babata, Muhd F. Mat, Hassan K. Ibrahim, David Simunek, and Mohd S. Sulaiman. 2022. "Numerical Evaluation of Fatigue Crack Growth of Structural Steels Using Energy Release Rate with VCCT" Applied Sciences 12, no. 5: 2641. https://doi.org/10.3390/app12052641

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