Abstract
The fatigue life of composite stiffened panels with indentation damage was investigated experimentally using single stringer compression specimens. Indentation damage was induced on one of the two flanges of the stringer. The experiments were conducted using advanced instrumentation, including digital image correlation, passive thermography, and in-situ ultrasonic scanning. Specimens with initial indentation damage lengths of 37 mm to 56 mm were tested in fatigue and the effects of cyclic load amplitude and damage size were studied. A means of comparison of the damage propagation rates and collapse loads based on a stress intensity measure and the Paris law is proposed.
Original language | English |
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Title of host publication | Proceedings of the 57th AIAA/ASCE/AHS/ASC structures, structural dynamics, and materials conference |
Place of Publication | Reston |
Publisher | American Institute of Aeronautics and Astronautics Inc. (AIAA) |
Number of pages | 12 |
ISBN (Print) | 978-1-62410-392-6 |
DOIs | |
Publication status | Published - 2016 |
Event | 57th AIAA/ASCE/AHS/ASC structures, structural dynamics, and materials conference - San Diego, United States Duration: 4 Jan 2016 → 8 Jan 2016 Conference number: 57 |
Publication series
Name | |
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Publisher | AIAA |
Conference
Conference | 57th AIAA/ASCE/AHS/ASC structures, structural dynamics, and materials conference |
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Country/Territory | United States |
City | San Diego |
Period | 4/01/16 → 8/01/16 |