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Delamination strength of composite curved beams reinforced by grooved stainless-steel Z-pins.
- Source :
-
Composite Structures . Nov2017, Vol. 180, p497-506. 10p. - Publication Year :
- 2017
-
Abstract
- When a laminated composite structure with curvature is subjected to a bending load, the most important failure mode is due to delamination in curved regions. In this study, the reinforcement effect of grooved Z-pins is investigated for preventing delamination of curved beams. Through a four-point bending test, the effect of stainless-steel pin diameter and areal density on bending failure of curved beams is studied. For areal pin densities of 0.5, 1.0, and 2.0%, pin diameters of 0.3 and 0.5 mm result in average pin strength increases of 21, 27, and 42% and 8.7, 12, and 32%, respectively. When the pin size is small, the pin is inserted closer to 90° from the mid-plane, a smaller resin-rich zone is generated, and there is less laminate damage. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02638223
- Volume :
- 180
- Database :
- Academic Search Index
- Journal :
- Composite Structures
- Publication Type :
- Academic Journal
- Accession number :
- 125022803
- Full Text :
- https://doi.org/10.1016/j.compstruct.2017.08.018