Effect Of Altitude On E-glassepoxy Composite For Aircraft Parts

This work focuses on analyzing in a fundamental way the effects of curing pressure during wetrnlayup procedure. An experiment was conducted to expose effects of altitude on E-glass/Epoxyrncomposite during fabrication or repair. Processing techniques of specimen preparation for anrnexperimental observation are also presented. rn rnE-glass/Epoxy laminates were obtained by a wet layup vacuum assisted technique as per thernrecommendation of Aircraft manufacturer. The composite laminates were prepared to meet ASTMrnstandards and the basic properties are determined with the help of universal testing machine.rnComposite test samples were manufactured from plain woven E-glass and epoxy adhesive atrnbagging vacuum pressure of 19” Hg, 16” Hg and 13” Hg. rn rnThe effect of altitude on E-glass/epoxy composites is analyzed and presented. Engineering stressrnagainst engineering strain graphs are plotted and documented to indicate the effects of altitude atrnvarious curing pressures. rn rnThis paper has also examined the need for an alternate means of compliance to make sure thernstructural repair procedures adopted by Ethiopian airlines for aircraft repair are well-defined tornshrink the effect on a structural integrity.

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