The effect of erosion on the fatigue limit of metallic materials for aerospace applications

E. Z. Kordatos; D. A. Exarchos; T. E. Matikas

doi:10.1117/12.2295211

27 March 2018 The effect of erosion on the fatigue limit of metallic materials for aerospace applications

E. Z. Kordatos, D. A. Exarchos, T. E. Matikas

Proceedings Volume 10599, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XII; 105991Z (2018) https://doi.org/10.1117/12.2295211
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2018, Denver, Colorado, United States

Abstract

This work deals with the study of the fatigue behavior of metallic materials for aerospace applications which have undergone erosion. Particularly, an innovative non-destructive methodology based on infrared lock-in thermography was applied on aluminum samples for the rapid determination of their fatigue limit. The effect of erosion on the structural integrity of materials can lead to a catastrophic failure and therefore an efficient assessment of the fatigue behavior is of high importance. Infrared thermography (IRT) as a non-destructive, non-contact, real time and full field method can be employed in order the fatigue limit to be rapidly determined. The basic principle of this method is the detection and monitoring of the intrinsically dissipated energy due to the cyclic fatigue loading. This methodology was successfully applied on both eroded and non-eroded aluminum specimens in order the severity of erosion to be evaluated.

Citation Download Citation

E. Z. Kordatos, D. A. Exarchos, and T. E. Matikas "The effect of erosion on the fatigue limit of metallic materials for aerospace applications", Proc. SPIE 10599, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XII, 105991Z (27 March 2018); https://doi.org/10.1117/12.2295211

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