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Title: Finite element analysis of hypervelocity impact behaviour of CFRP-Al/HC sandwich panel
Authors: Phadnis, Vaibhav A.
Silberschmidt, Vadim V.
Keywords: Carbon fibre
Impact behaviour
Finite element analysis
Issue Date: 2015
Publisher: © owned by the authors.
Citation: PHADNIS, V.A. and SILBERSCHMIDT, V.V., 2015. Finite element analysis of hypervelocity impact behaviour of CFRP-Al/HC sandwich panel. EPJ Web of Conferences, 94, DOI: 10.1051/epjconf/20159404051.
Abstract: The mechanical response of CFRP-Al/HC (carbon fibre-reinforced/epoxy composite face sheets with Al honeycomb core) sandwich panels to hyper-velocity impact (up to 1 km/s) is studied using a finite-element model developed in ABAQUS/Explicit. The intraply damage of CFRP face sheets is analysed by mean of a user-defined material model (VUMAT) employing a combination of Hashin and Puck criteria, delamination modelled using cohesive-zone elements. The damaged Al/HC core is assessed on the basis of a Johnson Cook dynamic failure model while its hydrodynamic response is captured using the Mie-Gruneisen equation of state. The results obtained with the developed finite-element model showed a reasonable correlation to experimental damage patterns. The surface peeling of both face sheets was evident, with a significant delamination around the impact location accompanied by crushing HC core.
Version: Published
DOI: 10.1051/epjconf/20159404051
URI: https://dspace.lboro.ac.uk/2134/20624
Publisher Link: http://dx.doi.org/10.1051/epjconf/20159404051
ISBN: 9782759818174
ISSN: 2101-6275
Appears in Collections:Conference Papers and Contributions (Mechanical, Electrical and Manufacturing Engineering)

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