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An Enriched Shell Element for Delamination Simulation in Composite LaminatesA formulation is presented for an enriched shell finite element capable of delamination simulation in composite laminates. The element uses an adaptive splitting approach for damage characterization that allows for straightforward low-fidelity model creation and a numerically efficient solution. The Floating Node Method is used in conjunction with the Virtual Crack Closure Technique to predict delamination growth and represent it discretely at an arbitrary ply interface. The enriched element is verified for Mode I delamination simulation using numerical benchmark data. After determining important mesh configuration guidelines for the vicinity of the delamination front in the model, a good correlation was found between the enriched shell element model results and the benchmark data set.
Document ID
20160006284
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
McElroy, Mark
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
May 16, 2016
Publication Date
September 28, 2015
Subject Category
Composite Materials
Report/Patent Number
NF1676L-20621
Report Number: NF1676L-20621
Meeting Information
Meeting: American Society for Composites Technical Conference
Location: East Lansing, MI
Country: United States
Start Date: September 28, 2015
End Date: September 30, 2015
Sponsors: American Society for Composites
Funding Number(s)
WBS: WBS 826611.04.07.01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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