Interaction of double parallel cracks located on a hollow cylinder

Omar Mohammed Al-Moayed; Al Emran Ismail; Ali Kamil Kareem; Saifulnizan Jamian; Gabriel de Castro Coêlho

doi:10.1590/1679-78257786

Interaction of double parallel cracks located on a hollow cylinder

Authors

Omar Mohammed Al-Moayed Renewable Energy Research Centre, University of Anbar, Ramadi, 31001, Iraq. https://orcid.org/0000-0002-3832-310X
Al Emran Ismail Faculty of Mechanical and Manufacturing Engineering, University Tun Hussein Onn Malaysia, Batu Pahat, 86400, Malaysia. https://orcid.org/0000-0003-2562-4509
Ali Kamil Kareem Department of Biomedical Engineering, Al-Mustaqbal University College, Babylon, Iraq. https://orcid.org/0000-0002-8446-8414
Saifulnizan Jamian Faculty of Mechanical and Manufacturing Engineering, University Tun Hussein Onn Malaysia, Batu Pahat, 86400, Malaysia. https://orcid.org/0000-0002-7710-0750
Gabriel de Castro Coêlho Department of Mechanical Engineering, Universidade Federal de Campina Grande, Campina Grande 58429-900, Brasil. https://orcid.org/0000-0002-4046-6812

DOI:

https://doi.org/10.1590/1679-78257786

Abstract

Due to the extensive usage in the industry, the structural integrity of hollow cylinders is seen as a critical goal for stakeholders. Fracture is the most common failure mode for cylinders, which occurs due to crack propagation. Cracks can be found in single or multiple forms; when numerous, crack interaction occurs, which can exacerbate pressures beyond the material's resistance. This work uses Ansys software to examine double parallel interacting surface cracks on a hollow cylinder. The stress intensity factor (SIF) was used to describe the driving force that was used to characterize crack interaction for various crack geometries. To conduct extensive research, this study evaluated a wide range of crack aspect ratios as well as the relative depth of the crack. The findings of this study indicated that the shielding effect demonstrated parallel crack interaction. In addition, an empirical mathematical approach for predicting SIFs for double parallel cracks via single crack SIFs has been developed. The validation of the proposed model using performance evaluation metrics revealed an acceptable rate of error of less than 5%.

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Published

2023-10-26

Issue

Vol. 20 No. 10 (2023)

Section

Articles

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