Fibre waviness defects in composite structures
Lead Research Organisation:
University of Bristol
Department Name: Aerospace Engineering
Abstract
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Publications
Bloom L
(2013)
Damage progression and defect sensitivity: An experimental study of representative wrinkles in tension
in Composites Part B: Engineering
Lemanski S
(2013)
Modelling failure of composite specimens with defects under compression loading
in Composites Part A: Applied Science and Manufacturing
Lightfoot J
(2013)
A new mechanism for the formation of ply wrinkles due to shear between plies
in Composites Part A: Applied Science and Manufacturing
Lightfoot J
(2013)
Defects in woven preforms: Formation mechanisms and the effects of laminate design and layup protocol
in Composites Part A: Applied Science and Manufacturing
Potter K.D.
(2009)
Understanding the origins of defects and variability in composites manufacture
in ICCM International Conferences on Composite Materials
Wang J
(2011)
Experimental fabrication and characterization of out-of-plane fiber waviness in continuous fiber-reinforced composites
in Journal of Composite Materials
Wang J
(2013)
Experimental investigation and characterisation techniques of compressive fatigue failure of composites with fibre waviness at ply drops
in Composite Structures
Wang J
(2013)
Failure mechanisms under compression loading in composites with designed out-of-plane fibre waviness
in Plastics, Rubber and Composites
| Description | Defects in composite structures can have a significant impact on strength. Fibre waviness defects where the fibres deviate from their intended direction are a particularly serious form of defect and this project has developed an understanding of the impacts of these defects. In addition new ways of experimentally investigating these defects have been developed. |
| Exploitation Route | The findings have been taken forward in further projects and have been disseminated through publications and conferences. The study of defects in composites, especially waviness defects has greatly expanded since this project was funded and the importance of these defects are now very widely understood. |
| Sectors | Aerospace, Defence and Marine,Manufacturing, including Industrial Biotechology,Transport |
| Description | The findings have been used by manufacturers of composite components and structures to identify necessary quality standards. The improved understanding of the impacts of fibre waviness have been extended by additional work on the origins of these defects in a further PhD project, and the papers from this project are well cited. |
| First Year Of Impact | 2015 |
| Sector | Aerospace, Defence and Marine,Manufacturing, including Industrial Biotechology |
| Impact Types | Economic |