Effect of low-speed impact damage on the buckling properties of E-glass/epoxy laminates |
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Authors: | A. Yapici M. Metin |
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Affiliation: | (1) Engineering Department, Cambridge University, Trumpington Street, Cambridge, CB2 1PZ, UK;(2) School of Materials, Manchester University, Paper Science Building, Sackville Street, Manchester, M60 1QD, UK; |
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Abstract: | The postimpact buck ling loads of E-glass/epoxy laminates have been measured. Composite samples with the stacking sequence [+45/−45/90/0]2s were subjected to low-speed impact loadings at various energy levels. The tests were conducted on a specially developed vertical drop-weight testing machine. The main impact parameters, such as the peak load, absorbed energy, deflection at the peak load, and damage area, were evaluated and com pared. The damaged specimens were subjected to compressive axial forces, and their buckling loads were determined. The relation between the level of impact energy and buck ling loads is investigated. |
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