Anisotropic creep in a glass-fibre laminate

dc.contributor.authorKaye, A.
dc.date.accessioned2017-08-21T15:06:45Z
dc.date.available2017-08-21T15:06:45Z
dc.date.issued1964-04
dc.description.abstractA glass fibre epoxy resin laminate was prepared from a flexible thermosetting resin and a 'plain weave' glass cloth. Experiments in simple tensile creep were carried out on strips cut with their long dimensions at various angles to the warp threads in the glass cloth. It was found that each of these strips showed, over the limited range of loads and times covered, essentially linear creep behaviour. The creep compliance varied systematically with direction being as much as twenty times smaller in the warp and weft directions as at 45° to these directions. It was found that the shape of the creep compliance versus orientation curves was similar for all times and the behaviour can therefore conveniently be described by two curves, a master curve of reduced creep compliance as a function of direction and a curve of reduction factor versus time. The significance of both these curves is discussed in terms of an extension of linear viscoelasticity theory to the case of antisotropic materials. It is shown that the variation of creep compliance with direction is similar in form to the variation of elastic compliance with direction in orthorhombic anisotropic elastic materials and also that the results are consistent with a similar variation of relaxation time spectrum with direction.en_UK
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/12346
dc.language.isoenen_UK
dc.publisherCollege of Aeronauticsen_UK
dc.relation.ispartofseriesCoA/N/Mat-3en_UK
dc.relation.ispartofseries3en_UK
dc.titleAnisotropic creep in a glass-fibre laminateen_UK
dc.typeReporten_UK

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