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Predictive models for assessing long-term performance of polymer matrix composites.

Broughton, W R; McCartney, L N (1998) Predictive models for assessing long-term performance of polymer matrix composites. NPL Report. CMMT(A)95

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Abstract

This report reviews life prediction methods used for evaluating long-term properties, residual strength and lifetime of fibre bundles, unidirectional composites and composite laminates exposed to heat, moisture or aggressive chemicals, and static or dynamic fatigue loads. A number of different approaches, including physics/mechanistic based theories (including Monte Carlo concepts) and empirical modelling (eg wear-out and micromechanical models) are considered. Materials models for characterising progressive failure of unbonded fibre bundles and impregnated strands will be developed and evaluated within a subsequent experimental programme. These models will be extended to laminated composites and will include the effects of non-uniform moisture and temperature gradients. The models and analyses developed will be required to assess the results of the parametric studies to be carried out to determine the effects of temperature and level of degrading agent on the degree of degradation, identifying any synergistic or superimposed effects between environmental and loading parameters.

Item Type: Report/Guide (NPL Report)
NPL Report No.: CMMT(A)95
Subjects: Advanced Materials
Advanced Materials > Materials Modelling
Last Modified: 02 Feb 2018 13:18
URI: http://eprintspublications.npl.co.uk/id/eprint/2870

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