A Laboratory Study of Multiple Site Damage in Fuselage Lap Splices
Final rept. Nov 1989-Feb 1992
JOHN A VOLPE NATIONAL TRANSPORTATION SYSTEMS CENTER CAMBRIDGE MA
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This report details an experimental study that was conducted to explore the causes of fuselage lap splice multiple site damage MSD, which has been observed in several aging aircraft. MSD was partially responsible for the 1988 Aloha Airlines accident. A specimen was designed and tests were conducted to investigate the effects on MSD and fatigue of 1 a terminating action repair 2 simultaneous tension and shear and 3 stress and several lap splice configurations. The results of over 120 tests were supported by finite element analysis, strain gage studies and statistics. Fatigue, Life, Fuselage lap, Biaxial stress, Bucktail diameter.