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Direct comparison of novel unidirectional sandwich coupon designs for accurate tensile failure strain determination of carbon fibre epoxy material

Czél, Gergely (2024) Direct comparison of novel unidirectional sandwich coupon designs for accurate tensile failure strain determination of carbon fibre epoxy material. In: 21st European Conference on Composite Materials (ECCM21), 2024.07.2. - 2024.07.05., Nantes, Franciaország.

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Abstract

Three different novel sandwich coupon designs comprising continuous unidirectional protective layers were directly compared with standard coupons to assess their potential to fully eliminate stress concentrations near the gripped regions. The gripping conditions were optimised using different grade sandpaper tabs at the end of the sandwich coupons. The sandwich type coupons yielded statistically significant increase in their average failure strain compared to that of the baseline tabbed coupons. However, the three sandwich coupon types did not show significant differences.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: carbon fibre, epoxy, tensile test coupon, stress concentration
Subjects: T Technology / alkalmazott, műszaki tudományok > TJ Mechanical engineering and machinery / gépészmérnöki tudományok
Depositing User: Dr. Tamás Tábi
Date Deposited: 25 Sep 2024 07:06
Last Modified: 25 Sep 2024 07:06
URI: https://real.mtak.hu/id/eprint/205784

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