Simulation of Fatigue Life Behavior of Circular Cross-Section Bar with Straight-Fronted Crack
Open Access
- 1 January 2014
- journal article
- Published by Scientific Research Publishing, Inc. in Modeling and Numerical Simulation of Material Science
- Vol. 04 (03), 128-135
- https://doi.org/10.4236/mnsms.2014.43014
Abstract
In this paper, fatigue life circular cross-section elastic bar under pure fatigue axial loading is studied through principles of linear elastic fracture mechanics (LEFM) coupled with the three-dimensional finite element technique for determination of critical crack size and residual lifetime. Three different initial notch depths are discussed. The relations between aspect ratio (b/c) and relative crack depth (b/D) are obtained, and it is shown that there is great difference in the growth of cracks with different front shapes and initial notch depths.Keywords
This publication has 1 reference indexed in Scilit:
- Fatigue growth simulation for cracks in notched and unnotched round barsInternational Journal of Mechanical Sciences, 1998