STUDY ON INFLUENCE OF DELAMITATION FLAW ON FATIGUE LIFE OF COMPOSITE STRUCTURES
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A new test device applied to the compression test for composite structures with delimitation was introduced. The influence of delamitation flaw at center and edge of the specimens was studied on fatigue life of aircraft composite structures by the compress fatigue test. The research results indicated that the locations of initial fatigue damage inside the specimens are identical with the prefabricated delimitation flaws. The fatigue life of the composite structures contained delimitation flaw is highly dependent on both size and location of the delamitation flaw. The research provided important data for making flaw and damage control method of aircraft composite structures during manufacture and service.