TY - GEN
T1 - Improved richtmyer-meshkov instability experiments for very-high-rate strength and application to tantalum
AU - Prime, Michael Bruce
AU - Buttler, William Tillman
AU - Fensin, Saryu Jindal
AU - Jones, David Robert
AU - Manzanares, Ruben
AU - Martinez, Daniel Tito
AU - Martinez, John Israel
AU - Schmidt, Derek William
AU - Trujillo, Carl Patrick
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Recently, Richtmyer-Meshkov instabilities (RMI) have been used for studying metal strength at strain rates up to at least 10^7/s. RMI experiments involve shocking a metal interface with geometrical perturbations that invert, grow, and possibly arrest subsequent to the shock. In experiments one measures the growth and arrest velocities to study the specimen’s flow (deviatoric) strength. In this paper, we describe experiments on tantalum at three shock pressure from 20 to 34 GPa, with six different perturbation sizes at each pressure, making this the most comprehensive set of RMI experiments on any material. In addition, these experiments were fielded using impact loading, as compared to high explosive loading in previous experiments, allowing for more precise modeling and more extensive interpretation of the data. Preliminary results are presented.
AB - Recently, Richtmyer-Meshkov instabilities (RMI) have been used for studying metal strength at strain rates up to at least 10^7/s. RMI experiments involve shocking a metal interface with geometrical perturbations that invert, grow, and possibly arrest subsequent to the shock. In experiments one measures the growth and arrest velocities to study the specimen’s flow (deviatoric) strength. In this paper, we describe experiments on tantalum at three shock pressure from 20 to 34 GPa, with six different perturbation sizes at each pressure, making this the most comprehensive set of RMI experiments on any material. In addition, these experiments were fielded using impact loading, as compared to high explosive loading in previous experiments, allowing for more precise modeling and more extensive interpretation of the data. Preliminary results are presented.
UR - https://www.scopus.com/pages/publications/85061240126
U2 - 10.1007/978-3-319-95089-1_16
DO - 10.1007/978-3-319-95089-1_16
M3 - Conference contribution
SN - 9783319950884
T3 - Conference Proceedings of the Society for Experimental Mechanics Series
SP - 101
EP - 104
BT - Dynamic Behavior of Materials, Volume 1 - Proceedings of the 2018 Annual Conference on Experimental and Applied Mechanics
A2 - Kimberley, Jamie
A2 - Mates, Steven
A2 - Lamberson, Leslie Elise
PB - Unknown Publisher
T2 - SEM Annual Conference and Exposition on Experimental and Applied Mechanics, 2018
Y2 - 1 January 2019
ER -