Stochastic Damage Growth Model for Fuselage Splices with Multisite Damage

摘要

Research has been conducted on method for risk assessment of fuselage splice joints containing multisite damage (MSD), and extensive test data from MSD specimens have been obtained. The objective is to propose a test data- based methodology of nine noncorroded MSD specimens under fatigue loading were examined, and a failure criterion was proposed involving an aggregated lead crack in a segment where the first linkup occurred. A curve-fitting technique was used to characterize the growth behavior of the aggregated lead crack in each specimen.