Abstract
The viscoelastic response of some continuous fibre thermoplastic composites has been investigated dynamically. The contribution of the number and direction of laminate ply layers and fibre type, together with the geometry, have been explored in relation to the matrix polymer. An interpretation in terms of an apparent Maxwell viscosity is in agreement with steady shear flow viscosity, and approximates to a large strain dynamic viscosity. A yield stress of the order of 1 kPa is implied by the Maxwell interpretation together with a high stress viscosity more than 10 times the viscosity of the matrix polymer. The use of model laminates leads to the prediction of both interply and intraply polymer flow in continuous fibre thermoplastic composites.
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