The behavior of glare material after a severe impact in a row of holes or rivet row containing initial flaws and fatigue damage

摘要

An extensive experimental program has been carried out on Glare sheet materials with two purposes, (1) to investigate the occurrence of MSD and (2) to determine the residual strength of a panel with MSD in front of a through-the-thickness crack due to severe impact damage. The fatigue tests illustrated that the occurrence of MSD in Glare in a rivet row is not likely to occur within the DSG of an aircraft, not even if all holes contain initial flaws. Link-up and final failure for specimens with open holes and filled holes with a large "lead" crack due to severe impact damage can be predicted with the use of the KR - curve approach as long as the fatigue crack growth is limited.