Fatigue crack growth analysis models for functionally graded materials

Date

2006-10-18

Author

Dağ, Serkan
Sabuncuoglu, Baris
YILDIRIM, BORA

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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The objective of this study is to develop crack growth analysis methods for functionally graded materials (FGMs) subjected to mode I cyclic loading. The study presents finite elements based computational procedures for both two and three dimensional problems to examine fatigue crack growth in functionally graded materials. Developed methods allow the computation of crack length and generation of crack front profile for a graded medium subjected to fluctuating stresses. The results presented for an elliptical crack embedded in a functionally graded medium, illustrate the competing effects of ellipse aspect ratio and material property gradation on the fatigue crack growth behavior.

Subject Keywords

Functionally graded materials, Fatigue crack growth, Finite element method, Elliptical crack, Fracture mechanics

URI

https://hdl.handle.net/11511/52865

Collections

Department of Mechanical Engineering, Conference / Seminar