The high-velocity impact of Dyneema® and Spectra® laminates: implementation of a simple thermal softening model

The commercial hydrocode ANSYS AUTODYN® was used to create a thermally dependent model of an Ultra-High Molecular Weight Polyethylene (UHMW-PE) composite under high and hypervelocity impact. In particular this model was validated against high-velocity fragment-simulating projectile (FSP) impacts and...

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Bibliographic Details
Published inProcedia engineering Vol. 204; pp. 51 - 58
Main Authors Austin, S., Brown, A.D., Escobedo, J.P., Wang, H., Kleine, H., Hazell, P.J.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2017
Subjects
Dyneema
failure
hypervelocity
Spectra
hypervelocity
Dyneema
Spectra
failure
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Summary:The commercial hydrocode ANSYS AUTODYN® was used to create a thermally dependent model of an Ultra-High Molecular Weight Polyethylene (UHMW-PE) composite under high and hypervelocity impact. In particular this model was validated against high-velocity fragment-simulating projectile (FSP) impacts and hypervelocity polycarbonate cylinder impacts at 2,100 m/s and 3,500 m/s. It appeared that despite the same material model being used for thick unidirectional Dyneema® laminates and thin woven Spectra® laminates, the model showed reasonable correlation in all cases. This suggests that modelling results from these types of studies are not sensitive to the exact parameters used in the material model.
ISSN:1877-7058
1877-7058
DOI:10.1016/j.proeng.2017.09.725