In this work has been estimated the compressive residual strength and Young modulus of a Carbon/Epoxy laminate after a near-edge impact. Near-edge impacts were performed with a Charpy pendulus, modified in order to obtain impact tests comparable with the ASTM D7136/D7136M-12; whereas compressive tests were performed using the Wyoming Combined Loading Compression (CLC) Test Method, described in ASTM D 6641/D 6641M-09. The CLC Test fixture presents many advantages: the load applied to the specimen is combined (end-load combined with shear-load), high reproducibility and reliability of the results, the lightness of the fixture, possibility of use specimens without tabs. Twenty-six cross-ply ([0°/90°]ns) coupons were tested in the compressive tests: 10 after a 3J impact (5 central impact and 5 near-edge impact), 10 after a 5J impact (5 central impact and 5 near-edge impact), 6 specimens without impacts. © 2015 The Authors. Published by Elsevier Ltd.

Experimental Determination of Compressive Residual Strength of a Carbon/epoxy Laminate after a Near-edge Impact

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2015

Abstract

In this work has been estimated the compressive residual strength and Young modulus of a Carbon/Epoxy laminate after a near-edge impact. Near-edge impacts were performed with a Charpy pendulus, modified in order to obtain impact tests comparable with the ASTM D7136/D7136M-12; whereas compressive tests were performed using the Wyoming Combined Loading Compression (CLC) Test Method, described in ASTM D 6641/D 6641M-09. The CLC Test fixture presents many advantages: the load applied to the specimen is combined (end-load combined with shear-load), high reproducibility and reliability of the results, the lightness of the fixture, possibility of use specimens without tabs. Twenty-six cross-ply ([0°/90°]ns) coupons were tested in the compressive tests: 10 after a 3J impact (5 central impact and 5 near-edge impact), 10 after a 5J impact (5 central impact and 5 near-edge impact), 6 specimens without impacts. © 2015 The Authors. Published by Elsevier Ltd.
CAI;CFRP;Impact;CLC
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.12079/3669
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