Comparative study of strain energy storage mechanisms between carbon fibre-reinforced peek and epoxy composites subjected to static and cyclic loading

Simple item page
dc.contributor.authorHernandez, Thibault. P. A.
dc.contributor.authorMills, Andrew R.
dc.contributor.authorYazdani Nezhad, Hamed
dc.date.accessioned2019-03-29T11:42:08Z
dc.date.available2019-03-29T11:42:08Z
dc.date.issued2018-06-30
dc.description.abstractExperimental studies were performed on the strain energy storage behaviour of aerospace grade PEEK and toughened epoxy carbon fibre-reinforced composite prepreg laminates having identical fibre content. The strain energy stored up to failure was recorded at the highest point of deflection for static three point bending (3PtB) samples laminates with different thicknesses. Ductile and brittle behaviors at failure have been the key focuses of this study therefore cyclic loading tests were also performed. Firstly, high strain 3PtB fatigue loading was carried out on the two prepregs with identical quasiisotropic stacking sequences, and secondly in order to characterise the plasticity parameters for the two laminates cyclic shear tests at high strain levels was carried out. The results have shown that the strain energy storage characteristics of the PEEK laminates are much better than those of the epoxy laminates in several ways; such as the independence of the strain energy storage level to thickness. Furthermore, at the same level of applied stress, the PEEK laminates tend not to lose strain energy compared to the toughened epoxy laminates. This study shows that the thermoplastic nature of the PEEK gives it an improved plasticity level which enhances its strain energy storage capability. PEEK carbon laminates are therefore serious candidates for spring applications.en_UK
dc.identifier.citationThibault. P. A. Hernandez, Andrew R. Mills and Hamed Yazdani Nezhad. Comparative study of strain energy storage mechanisms between carbon fibre-reinforced peek and epoxy composites subjected to static and cyclic loading. 18th European Conference on Composite Materials, 24-28 June 2018, Athens, Greeceen_UK
dc.identifier.urihttp://www.eccm18.org/
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/14017
dc.language.isoenen_UK
dc.publisherEuropean Society for Composite Materialsen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectThermoplastic PEEKen_UK
dc.subjectStrain energy storageen_UK
dc.subjectPlasticityen_UK
dc.subjectCFRPen_UK
dc.titleComparative study of strain energy storage mechanisms between carbon fibre-reinforced peek and epoxy composites subjected to static and cyclic loadingen_UK
dc.typeConference paperen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
strain_energy_storage_mechanisms-2018.pdf
Size:
888.35 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SATM)