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 17th European Conference on Composite Materials |
| Subtitle of host publication | Munich, Germany 2016 |
| Place of Publication | Reston |
| Number of pages | 9 |
| Publication status | Published - 2016 |
| Event | 17th European Conference on Composite Materials, ECCM 2016 - Munich, Germany Duration: 26 Jun 2016 → 30 Jun 2016 Conference number: 17 http://www.eccm17.org/ |
Publication series
| Name | |
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| Publisher | AIAA |
Conference
| Conference | 17th European Conference on Composite Materials, ECCM 2016 |
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| Abbreviated title | ECCM 2016 |
| Country/Territory | Germany |
| City | Munich |
| Period | 26/06/16 → 30/06/16 |
| Internet address |
Keywords
- fatigue
- postbuckling
- damage tolerance
- indentation damage
- delamination