Improved Methods for Predicting Spectrum Loading Effects -Phase I Report. Volume I. Results and Discussion.

摘要

This report presents the interim status of a program which aiming to upgrade the crack growth prediction technology required for the implementation of the damage-tolerance and durability control procedures throughout the life cycle of any weapon system. The controlling damage parameters in flight-by-flight loading for all classes of aircraft have been identified. Methodologies which characterize the flight spectra have been developed. Guidelines for development of three levels of crack growth analysis used for detail design, individual aircraft tracking, and preliminary design have been established. (Author)