Abstract
Fatigue crack growths of a corner crack emanating from a pinhole of a solid cylinder subjected to cyclic torsion loading were simulated using a Dual-Boundary Element Method (DBEM) based software. For a given crack aspect ratio a/c, larger Mode I stress intensity factor (SIF) was observed at a larger pinhole diameter. Any given initial crack aspect ratio a/c would evolve towards unity. The final evolving crack aspect ratio a/c was shown to be larger than 1. For the same given initial crack length a, a smaller crack depth c was found to result in a shorter fatigue life. A shorter fatigue life yielded a larger orientation angle of the crack growth path.
Original language | English |
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Pages (from-to) | 353-364 |
Number of pages | 12 |
Journal | Engineering Solid Mechanics |
Volume | 8 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2020 |
Open Access - Access Right Statement
© 2020 by the authors; licensee Growing Science, Canada. This is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).Keywords
- cracks
- cylinders
- fatigue
- fracture mechanics
- torsion