BR Library

This is an article from my PhD held at the British Library

This message from the British Library contains the details of the following item:

Materials for motorcycle crash helmets - a finite element parametric study




A  general finite element model of a motorcycle crash helmet has been  created which incorporates the main features of proprietary designs  although of a simplified geometry. The behaviour under impact conditions is investigated, using the Dyna3d computer package, with  particular reference to the influence of shell stiffness and polystyrene liner density. Performance is judged in terms of maximum acceleration  and the head injury criterion, HIC. That the stiffness of the shell has a major effect on the behaviour has been established, this needing to be low to enhance the value of the helmet in reducing rider head injury in an impact. Furthermore the liner material should have a low density,  and hence also a low stiffness, so that the limited space available for its deformation is used to the maximum.

Links to my PhD in the British Library:

A couple of other links I found that cover this work:



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