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dc.contributor.authorKaterelos, Dionisiοs G.
dc.contributor.authorGaliotis, Costas
dc.date.accessioned2015-07-11T14:17:57Z
dc.date.available2015-07-11T14:17:57Z
dc.date.issued2004
dc.identifier.otherDOI: http://dx.doi.org/10.1063/1.1811395
dc.identifier.urihttp://hdl.handle.net/123456789/580
dc.description.abstractThe initial mode of damage in multidirectional composites is the accumulation of matrix cracks in the off-axis plies. Remote laser Raman spectroscopy, using aramid (Kevlar 49®) fibers as Raman strain sensors, has been employed to monitor the local strains in cracked crossply composites. The strain magnification in the 0° ply caused by 90° matrix cracking are measured at different levels of loading. A relationship between the values of strain magnification and the distance between the position of the fibers sensors vis-à-vis the crack front has been established. The effect of damage progression within the 0° plies on the remaining∕surviving glass fibers is modeled satisfactorily and verified against predictions on the basis of a generalized plane strain model by assuming that the 90° ply “expands” in relative size against the 0° ply thickness.el
dc.language.isoenel
dc.subjectFiber optic sensorsel
dc.subjectLaminatesel
dc.subjectStrain measurementel
dc.subjectCracksel
dc.subjectComposite materialsel
dc.titleAxial strain redistribution resulting from off-axis ply cracking in polymer compositesel
dc.typeArticleel


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