Simulation of damage evolution in a uni-directional titanium matrix composite subjected to high cycle fatigue
✍ Scribed by Rainer Echle; George Z. Voyiadjis
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 357 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0142-1123
No coin nor oath required. For personal study only.
✦ Synopsis
Among the advanced material systems under consideration for use in gas turbine engines special consideration is given to the family of metal matrix composites especially the Titanium matrix composites. This is attributed mainly to the superior stiffness to weight ratio as compared to other conventional materials. The lack of appropriate material models capable of simulating the material behavior realistically is a major drawback in the success of this material system. In the current research the results of numerical simulations for the damage evolution in a uni-directional Titanium matrix composite subjected to high cycle fatigue loading are presented. The employed micro-mechanical fatigue damage model has been developed previously by the authors. Results obtained from the numerical simulations include those from parametric studies on the influence of various model parameters as well as those for damage evolution in the constituents during the material lifetime. Comparison of the final results for the number of cycles to failure for room temperature fatigue with those obtained from experimental investigations show good agreement.