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Determining the Mechanical Properties of Lattice Block StructuresLattice block structures and shape memory alloys possess several traits ideal for solving intriguing new engineering problems in industries such as aerospace, military, and transportation. Recent testing at the NASA Glenn Research Center has investigated the material properties of lattice block structures cast from a conventional aerospace titanium alloy as well as lattice block structures cast from nickel-titanium shape memory alloy. The lattice block structures for both materials were sectioned into smaller subelements for tension and compression testing. The results from the cast conventional titanium material showed that the expected mechanical properties were maintained. The shape memory alloy material was found to be extremely brittle from the casting process and only compression testing was completed. Future shape memory alloy lattice block structures will utilize an adjusted material composition that will provide a better quality casting. The testing effort resulted in baseline mechanical property data from the conventional titanium material for comparison to shape memory alloy materials once suitable castings are available.
Document ID
20130014836
Acquisition Source
Glenn Research Center
Document Type
Contractor Report (CR)
Authors
Wilmoth, Nathan (Vantage Partners, LLC Brook Park, OH, United States)
Date Acquired
December 23, 2013
Publication Date
June 1, 2013
Subject Category
Structural Mechanics
Report/Patent Number
NASA/CR-2013-217880
E-18688
Funding Number(s)
WBS: WBS 432938.11.01.03.02.02.16
CONTRACT_GRANT: NNC12BA01B
Distribution Limits
Public
Copyright
Public Use Permitted.

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