Effect of Exposure Time on the Fatigue Crack Growth Behavior of Aircraft Skin Material

Authors

Kathryn Lemasters
Tarun Goswami, Wright State University - Main CampusFollow

Document Type

Article

Publication Date

2002

Abstract

The objective of this research project is to identify the effects of service exposure on aircraft materials. The senior author participated in the KC-135 Corrosion Prevention Program conducted by the University of Utah, Salt Lake City. Data from this research program was analyzed to compare the fatigue crack growth rates of aged aircraft materials with those of virgin materials. 2024-T3(clad) Middle Tension (M(T)) specimens were machined from the fuselage and upper wing skins of a retired aircraft. Fatigue crack growth rate (da/dN) and mode 1 stress intensity factor range (Δ K) plots were generated for both sets of data. The aged materials exhibited fatigue crack growth rates that were 2-5 times higher than those of the new materials.

Comments

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

Repository Citation

Lemasters, K., & Goswami, T. (2002). Effect of Exposure Time on the Fatigue Crack Growth Behavior of Aircraft Skin Material. Journal of the Mechanical Behavior of Materials, 13 (5-6), 363-372.
https://corescholar.libraries.wright.edu/bie/146

DOI

10.1515/JMBM.2002.13.5-6.363