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An Analytical Method to Calculate Effective Elastic Properties of General Multifunctional Honeycomb Cores in Sandwich CompositesSandwich composite structures are ideal configurations in which to incorporate additional functionality beyond load-carrying capabilities. The inner core-walls can be layered to incorporate other functions such as power storage for a battery. In this work we investigate an assemblage of analytical tools to compute effective properties that allow complex layered core architectures to be homogenized into a single continuum layer. This provides a great increase in computational efficiency to numerically simulate the structural response of multifunctional sandwich structures under applied loads. We present a coupled analytical method including an extensive numerical verification of the accuracy of this method.
Document ID
20190025271
Acquisition Source
Langley Research Center
Document Type
Technical Memorandum (TM)
Authors
Sather, Erik (NASA Langley Research Center Hampton, VA, United States)
Krishnamurthy, Thiagaraja (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
May 22, 2019
Publication Date
April 1, 2019
Subject Category
Structural Mechanics
Report/Patent Number
NASA/TM-2019-220275
NF1676L-32943
L-21020
Funding Number(s)
WORK_UNIT: 975105.09.23
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Technical Review
Single Expert

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