Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 45, Issue -, Pages 49-60Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2012.09.017
Keywords
Polymer-matrix composites (PMCs); 3-Dimensional reinforcement; Impact behavior; Fracture
Funding
- Spanish Center for Industrial and Technological Development (CDTI)
- Airbus Operations within the framework of the ICARO Project (CENIT program)
- Comunidad de Madrid through the program ESTRUMAT [S2009/MAT-1585]
- Spanish Ministry of Science and Innovation through the Juan de la Cierva program
Ask authors/readers for more resources
3D woven composites reinforced with either S2 glass, carbon or a hybrid combination of both and containing either polyethylene or carbon z-yarns were tested under low-velocity impact. Different impact energies (in the range of 21-316 J) were used and the mechanical response (in terms of the impact strength and energy dissipated) was compared with that measured in high-performance, albeit standard, 2D laminates. It was found that the impact strength in both 2D and 3D materials was mainly dependent on the in-plane fiber fracture. Conversely, the energy absorption capability was primarily influenced by the presence of z-yarns, having the 3D composites dissipated over twice the energy than the 2D laminates, irrespective of their individual characteristics (fiber type, compaction degree, porosity, etc.). X-ray rnicrotomography revealed that this improvement was due to the z-yarns, which delayed delamination and maintained the structural integrity of the laminate, promoting energy dissipation by tow splitting, intensive fiber breakage under the tup and formation of a plug by out-of-plane shear. (C) 2012 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available