Abstract
This work aims to evaluate the effect of hygrothermal conditioning on the tensile, in-plane shear and viscoelastic properties of carbon fiber/epoxy laminates (fiber volume fraction ≈ 70%). The flat unidirectional laminates were manufactured by filament winding process using a KUKA robot and the composites were cured under hot compression molding. The laminates were later exposed to hygrothermal conditioning. All composite samples were tested before and after environmental conditioning in a hygrothermal chamber. Elastic and strength tensile properties reduced for aged specimens, e.g. [0]4 sample presented a reduction of 18% in tensile strength and 8% in elastic modulus. Shear strength and modulus followed the same trend, and shear modulus reduced in about 38%. Tensile and shear post-test specimens presented accepted failure modes, since for instance, shear specimens failed at the gage section with delaminations.
Original language | English |
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Publication status | Published - 1 Jan 2015 |
MoE publication type | Not Eligible |
Event | International Conference on Composite Materials - Copenhagen, Denmark Duration: 19 Jul 2015 → 24 Jul 2015 Conference number: 20 |
Conference
Conference | International Conference on Composite Materials |
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Abbreviated title | ICCM |
Country/Territory | Denmark |
City | Copenhagen |
Period | 19/07/2015 → 24/07/2015 |
Keywords
- Advanced composites
- Environmental effect
- Filament winding
- Mechanical performance