Fatigue damage prognosis of a cruciform structure under biaxial random and flight profile loading

Subhasish Mohanty; Aditi Chattopadhyay; Pedro Peralta; Dan Quech

doi:10.1117/12.848814

9 April 2010 Fatigue damage prognosis of a cruciform structure under biaxial random and flight profile loading

Subhasish Mohanty, Aditi Chattopadhyay, Pedro Peralta, Dan Quech

Proceedings Volume 7649, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2010; 76490C (2010) https://doi.org/10.1117/12.848814
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2010, San Diego, California, United States

Abstract

The accurate estimation of fatigue life of metallic structural components in service environments is still a challenge for the aircraft designer or fleet manager. Majority of the current available fatigue life prediction models has deficiency to accurately predict damage under random or flight profile service loads. The inherent accuracy is due to the stochastic nature of crack propagation in metallic structure. In addition, currently no generic prediction model available accounting the load interaction effects due to variable loading. In the present paper we discus the use of a Generic Bayesian framework based Gaussian process approach to probabilistically predict the fatigue damage under complex random and flight profile loading.

Citation Download Citation

Subhasish Mohanty, Aditi Chattopadhyay, Pedro Peralta, and Dan Quech "Fatigue damage prognosis of a cruciform structure under biaxial random and flight profile loading", Proc. SPIE 7649, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2010, 76490C (9 April 2010); https://doi.org/10.1117/12.848814

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