Journal article
Characterizing delamination of fibre composites by mixed mode cohesive laws
Composites and Materials Mechanics, Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark1
Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
LM Glasfiber A/S4
A novel method is used for the determination of mixed mode cohesive laws and bridging laws for the characterisation of crack bridging in composites. The approach is based on an application of the J integral. The obtained cohesive laws were found to possess high peak stress values. Mixed mode cohesive stresses were found to depend on both the normal and tangential crack opening displacements.
The bridging laws, which are to be used together with a mode mixity dependent crack tip fracture energy, were found to possess relative low bridging stresses; the peak normal bridging stress was approximately 2 MPa during pure Mode I and the maximum shear stress during pure Mode 11 was about 10 MPa. (C) 2008 Elsevier Ltd.
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| Language: | English |
|---|---|
| Year: | 2009 |
| Pages: | 445-456 |
| ISSN: | 18791050 and 02663538 |
| Types: | Journal article |
| DOI: | 10.1016/j.compscitech.2008.11.025 |
| ORCIDs: | Sørensen, Bent F. |
Lette stærke materialer til vindmøller og til transport Light strong materials for wind turbines and for transportation Materialeforskning Materials research
A. Polymer-matrix composites B. Delamination C. Fibre bridging
