Dean, G; Wright, L (2003) An evaluation of the use of finite element analysis for predicting the deformation of plastics under impact loading. Polym. Test., 22 (6). pp. 625-631.

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Abstract

The use of finite element methods is described for predicting the deformation of a tough thermoplastic material under different loading speeds including impact. An elastic-plastic model is used in the simulation for describing the large-strain, non-linear behaviour of the polymer. The determination of the materials properties and parameters required by the model, and their dependence upon strain rate, is described. Some limitations in the use of this model for plastics is illustrated through the analysis of results from an ABS polymer.
Predictions are made of the deformation of a circular plate of ABS polymer that is supported by a circular ring and loaded at its centre by a rigid hemispherical surface. Predicted results are compared with measurements of force against central deflection at different speeds up to 1 m/s. Comparisons are also made at a lower speed between measured and predicted strains around the centre of the plate.

Item Type:	Article
Keywords:	impact performance
Subjects:	Advanced Materials Advanced Materials > Polymers
Last Modified:	02 Feb 2018 13:16
URI:	http://eprintspublications.npl.co.uk/id/eprint/2982

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