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Numerical Simulation Of A High Strain Rate Biaxial Compression Apparatus, Michael Lagieski
Numerical Simulation Of A High Strain Rate Biaxial Compression Apparatus, Michael Lagieski
McKelvey School of Engineering Theses & Dissertations
Few experimental methods today are capable of exploring the strength of materials at high strain rates (105 s-1). Those that are capable, such as the Split Hopkinson Bar, Taylor Anvil and Plate Impact suffer from instability and are generally limited to one dimensional wave propagation. Of particular interest is material response under biaxial compression, similar to that seen in inertial confinement fusion. Laser fusion fuel pellets typically undergo large strain rates as well as plastic deformation and non-linear behavior. This work briefly outlines an experimental procedure designed to replicate these large strain rates under biaxial compression using …