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1999
Conference Paper
Titel
Fibre-reinforced laminates with a gradient in resin matrix
Abstract
Using the hot press laminating technique gradient laminates have been realised with a cyanate ester matrix resin modified by a carboxyl terminated liquid rubber of graded amount in the direction normal to the fibre. It is shown, that the structure of the gradient after the hot press laminating process can be analysed using Dynamic Mechanical Analysis (DMA ). There is a distinct influence of such gradients on the laminate damage tolerance. So far only gradient laminates with a non-symmetric distribution have been realised (one-sided gradient laminate), however, the optimum gradient design for a maximum damage tolerance seems to be the double-sided gradient laminate.