Abstract
The polyamide-based composite materials are widely employed in various industrial domains. Along with the numerous advantages of these engineering materials, an important sensitivity to hygrothermal conditions represents a major drawback. Hence, this study aims to thoroughly evaluate the variation of physical and mechanical properties in moist and thermal environments of three stacking sequences. An extensive tensile testing campaign is performed in order to create a rich experimental database. It is therefore preceded by a proper establishment of desiccation/absorption protocol for the composite material. The results demonstrate that the humid ageing parameters are highly affected by the temperature. The mechanical response is dependent on the glass transition temperature, or Tg-T criterion, due to the occurring material plasticisation as a result of absorbed moisture. The shear modulus, the shear yield stress and strength deteriorate with the increase of temperature and moisture content. The changes of properties for the longitudinal and transversal orientations are not considerably pronounced.
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