Life modelling of a plastic automotive component
Grove, Daniel M. Henshall, Edwin Rosala, George F.
Grove, Daniel M.
Henshall, Edwin
Rosala, George F.
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2005
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Abstract
This paper presents a framework for life prediction modelling and illustrates it with a case study of a plastic automotive component subjected to competing failure mechanisms: wear, leading to a soft failure-degradation of functional performance, and fatigue, leading to loss of function through fracture of a main sub-component. The paper focuses on developing a life prediction model for the fatigue failure mechanism. Structural and kinematic analysis of the component was conducted to identify a suitable substitute load characteristic for the failure mechanism. The aim is to develop an approximate model using limited testing data and when a baseline stress-life model is not available. The issues highlighted by the case study are generic to development of life models for non-critical automotive components, thus providing potentially wide scope for practical application of the approach.
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Campean, I.F., Rosala, G.F., Grove, D.M., Henshall, E. (2005), Annual Reliability and Maintainability Symposium, 51st, Alexandria, Virginia, USA, 24-27 January, Proceedings
pp. 319 - 325.
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