Interfacial Effects on the Dispersion and Dissipation of Shock Waves in Ni/Al Multilayer Composites

The influence of interfacial density, structure, and strength in addition to material strengths on the dispersion and dissipation of a shock wave traveling parallel to the layers in a laminar, multilayer composite was investigated using two-dimensional, meso-scale simulations incorporating a real, h...

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Bibliographic Details
Published inJournal of dynamic behavior of materials Vol. 2; no. 4; pp. 500 - 510
Main Authors Specht, Paul E., Weihs, Timothy P., Thadhani, Naresh N.
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 01.12.2016
Springer Nature B.V
Subjects
Chemistry and Materials Science
Dissipation
Laminar composites
Materials Science
Metallic Materials
Multilayers
Shock waves
Solid Mechanics
Surface tension
Wave dispersion
Shock loading
Composites
Modeling and simulation
Wave propagation
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Summary:The influence of interfacial density, structure, and strength in addition to material strengths on the dispersion and dissipation of a shock wave traveling parallel to the layers in a laminar, multilayer composite was investigated using two-dimensional, meso-scale simulations incorporating a real, heterogeneous microstructure. Optimum interfacial densities for maximizing wave dispersion and dissipation were identified. Interfacial structure strongly influenced the dispersion by altering the wave interactions internal to the composite. Interfacial strength effected both the dispersion and dissipation through drastic changes to the interfacial strain generated. Lastly, material strength influenced only the dissipation of the shock wave by altering the compressibility of the constituents. The combined results identified interfacial strain as the driving mechanism influencing the shock compression response of the Ni/Al multilayered composites.
ISSN:2199-7446
2199-7454
DOI:10.1007/s40870-016-0084-0