Damping behavior of 3D woven metallic lattice materials

Cu and NiCr metallic lattice materials of two different micro-architectures were manufactured with a 3D weaving process. Dynamic mechanical analysis experiments demonstrated that the damping properties of these materials are much greater than their bulk counterparts and were found to have damping lo...

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Bibliographic Details
Published in:Scripta materialia 2015-09, Vol.106, p.1-4
Main Authors: Ryan, Stephen M., Szyniszewski, Stefan, Ha, Seunghyun, Xiao, Rui, Nguyen, Thao D., Sharp, Keith W., Weihs, Timothy P., Guest, James K., Hemker, Kevin J.
Format: Article
Language:English
Subjects:
3-D weaving
Damping
Design
Dynamic tests
Lattices
Mathematical analysis
Mathematical models
Metallic lattice material
Micro-architected materials
Polymers
Three dimensional
Weaving
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Summary:Cu and NiCr metallic lattice materials of two different micro-architectures were manufactured with a 3D weaving process. Dynamic mechanical analysis experiments demonstrated that the damping properties of these materials are much greater than their bulk counterparts and were found to have damping loss coefficients comparable to polymers, but with much higher maximum use temperatures. The magnitude of the damping phenomenon is characterized experimentally, and the importance of Coulomb (frictional) damping and inertial damping are investigated using a finite element model.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2015.03.010