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Mechanical Engineering Commons

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2008

LSU Master's Theses

High strain rate

Articles 1 - 2 of 2

Full-Text Articles in Mechanical Engineering

High Strain Rate Characteristics Of Rubber Modified Syntactic Foams, Paul Wehmer Jan 2008

High Strain Rate Characteristics Of Rubber Modified Syntactic Foams, Paul Wehmer

LSU Master's Theses

This thesis deals with the characterization of hybrid syntactic foams under high strain rates (HSR) ranging from 450/s to 1000/s. The foams studied are comprised of epoxy resin matrix filled with 63% volume fraction glass microspheres and 2% volume fraction of ground rubber fragments. The focus of this study is to compare the strength, ultimate strain, and modulus of these composite materials at high strain rates and quasi-static conditions and to find out the effects of HSR on the failure mode and fracture behavior of these materials. Split Hopkinson Pressure Bar (SHPB) apparatus is used for the HSR ...


Nanoclay Syntactic Foam Composites, Sameer Leo Peter Jan 2008

Nanoclay Syntactic Foam Composites, Sameer Leo Peter

LSU Master's Theses

Syntactic foams are composite materials in which the matrix phase is reinforced with hollow particles called microballoons. They possess low moisture absorption, low thermal conductivity and high damage tolerance because of their compositions. Traditionally, syntactic foams are used in many high strength applications such as in aerospace and marine industries, thus there is a need to achieve both high compressive strength and high fracture strain with minimal increase in density. This research studies the effect of nanoclay on the high strain rate mechanical properties of syntactic foams. Nanoclay reinforced syntactic foams are fabricated by adding 1, 2 and 5% volume ...