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Homogenised non-linear soft inclusion for simulation of impact damage in composite structures
Imperial College London.
Imperial College London.
RISE, Swerea, Swerea SICOMP.
2011 (English)In: Composite structures, ISSN 0263-8223, E-ISSN 1879-1085, Vol. 93, no 2, p. 952-960Article in journal (Refereed)
Abstract [en]

This paper presents the development of a homogenised non-linear soft inclusion which captures the geometric and material non-linearity of impact damage zone loaded in tension and compression. The homogenised non-linear soft inclusion can present a conservative worst case damage zone or use experimental data to mimic the behaviour of a particular damage zone in a simple and computationally efficient way that can be used as a structural design tool for composite structures subjected to impact. The development of the non-linear soft inclusion, implemented in an ABAQUS/Explicit VUMAT, is presented at element and coupon level. The non-linear soft inclusion is validated against experimental coupon data and produces a conservative worst case estimate in all cases investigated. © 2010 Elsevier Ltd.

Place, publisher, year, edition, pages
2011. Vol. 93, no 2, p. 952-960
Keywords [en]
Carbon fibres, Damage tolerance and soft inclusion, Impact behaviour, Non-linear behaviour
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-13173DOI: 10.1016/j.compstruct.2010.06.026OAI: oai:DiVA.org:ri-13173DiVA, id: diva2:973369
Available from: 2016-09-22 Created: 2016-09-22 Last updated: 2017-11-21Bibliographically approved

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Publisher's full texthttp://www.sciencedirect.com/science/article/pii/S0263822310002357
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