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. 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.
|Title of host publication||ICCM 2015: 20th International Conference on Composite Materials: Proceedings|
|Place of Publication||Copenhagen, Denmark|
|Publication status||Published - 2015|
|Event||20th International Conference on Composite Materials, ICCM 2015 - Copenhagen, Denmark|
Duration: 19 Jul 2015 → 24 Jul 2015
|Conference||20th International Conference on Composite Materials, ICCM 2015|
|Period||19/07/2015 → 24/07/2015|