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Validation of analytical model for hail impact on composite laminates
RISE, Swerea, SICOMP.ORCID iD: 0000-0002-2627-3280
RISE, Swerea, SICOMP.
2010 (English)In: Proc. 14th European Conf. on Composite Materials (ECCM 18)., European Society for Composite Materials , 2010, article id Paper 137Conference paper, Published paper (Refereed)
Abstract [en]

This paper examines analytical models for hail impact on composite laminates and compares the predictions with finite element simulations and experiments. The crushing of the ice results in a distributed load and a much higher delamination threshold load than for impact by hard objects. Furthermore, prediction of the impact load by merely considering the mass flow of ice particles results in too low loads and a response in disagreement with experiments. The pressure acting on the impacted plate is fairly uniform within the contact area, but initial through-thickness waves during the first moments of the impact cause much higher stresses than the quasi-static values assumed in the analytical models. Hence the finite element models predict a different load history, with a much steeper initial increase in the contact load.

Place, publisher, year, edition, pages
European Society for Composite Materials , 2010. article id Paper 137
Keywords [en]
delamination, hail, impact, model, laminates
National Category
Aerospace Engineering
Identifiers
URN: urn:nbn:se:ri:diva-42481OAI: oai:DiVA.org:ri-42481DiVA, id: diva2:1383898
Conference
14th European Conf. on Composite Materials (ECCM 18). Budapest, Hungary.
Note

Bidrag från ECCM 18 saknas bland proceedings hos utgivaren (ESCM)

Available from: 2020-01-08 Created: 2020-01-08 Last updated: 2020-01-10

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Olsson, Robin

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