Cot, Lea D and Mukherjee, Shuvajit and Melgar, Misael and Ganguli, Ranjan (2015) Aircraft Composite Structure Preventive Maintenance. In: 10th International Workshop on Structural Health Monitoring (IWSHM), SEP 01-03, 2015, Stanford Univ, Stanford, CA, pp. 2269-2276.Full text not available from this repository. (Request a copy)
In this paper, a methodology to reduce composite structure maintenance operational cost using SHM systems is adressed. Based on SHM real-time data, in-service structure lifetime prognostic and remaining useful lifetime (RUL) can be performed. Maintenance timetable can be therefore predicted by optimizing inspection times. A probabilistic ap-proach is combined with phenomenological fatigue damage models for composite mate-rials to perform maintenance cost-effectiveness of composite structure. A Monte Carlo method is used to estimate the probability of failure of composite structures and com-pute the average number of composite structure components to be replaced over the component lifetime. The replacement frequency of a given structure component over the aircraft lifetime is assessed. A first application of aeronautical composite structure maintenance is considered. Two composite models to predict the fatigue life and several laminates have been used. Our study shows that maintenance cost-effectiveness depends on material and fatigue loading applied.
|Item Type:||Conference Proceedings|
|Additional Information:||Copy right for this article belongs to the DESTECH PUBLICATIONS, INC, 439 DUKE STREET, LANCASTER, PA 17602-4967 USA|
|Department/Centre:||Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)|
|Date Deposited:||06 Jan 2016 05:55|
|Last Modified:||06 Jan 2016 05:55|
Actions (login required)