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R&D Journal
versión On-line ISSN 2309-8988
versión impresa ISSN 0257-9669
Resumen
VENTER, MP y VENTER, G. A numerical evaluation of dunnage bag pressure drop subject to a single void reduction cycle. R&D j. (Matieland, Online) [online]. 2017, vol.33, pp.42-48. ISSN 2309-8988.
A method using a simple response model is used to replicate the results of an industry standard certification test for a dunnage bag. The method makes use of numerical optimization tools, standard commercial FEA software and a simple material response model to predict the pressure drop in a dunnage bag caused by material plastic deformation under a compressive cycled load. The results of the response model are evaluated to ensure that the overall response of the model matches that of the measured system. Calibration of the model is done by numerical optimization and the resulting model predicts the pressure drop over one cycle to within one standard deviation of the measured results.
Palabras clave : woven polypropylene fabric; finite element methods; dunnage bags; optimization; plastic deformation.