Compressive failure on non-crimp fabric composites containing impact damage, holes and artificial defects
(English)Manuscript (preprint) (Other academic)
The present study concerns compressive failure of glass fibre NCF composite laminates. The objectives of the study are firstly to give insight into the mechanisms leading to failure, and secondly to provide guidelines for development of physically based engineering models.
The governing failure mechanism for laminates with impact damage, artificial delaminations as well as artificial delaminations and holes was delamination growth, while the governing failure mechanism for laminates with holes was fibre microbuckling and kink band formation. A single artificial dent in the specimens did not seem to reduce the compressive strength to any great extent, but when the dent was combined with artificial delaminations the compressive strength was substantially reduced and the specimens failed due to delamination growth.
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-102644OAI: oai:DiVA.org:liu-102644DiVA: diva2:680223