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Simulation of Fatigue Life Behavior of Circular Cross-Section Bar with Straight-Fronted Crack

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DOI: 10.4236/mnsms.2014.43014    2,875 Downloads   4,025 Views   Citations

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.

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Alihosseini, H. , Dehghani, K. and Faraji, G. (2014) Simulation of Fatigue Life Behavior of Circular Cross-Section Bar with Straight-Fronted Crack. Modeling and Numerical Simulation of Material Science, 4, 128-135. doi: 10.4236/mnsms.2014.43014.

Conflicts of Interest

The authors declare no conflicts of interest.

References

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