Magnetically applied pressure-shear : a new technique for direct strength measurement at high pressure (final report for LDRD project 117856).

Lamppa, Derek C. ; Haill, Thomas A. ; Alexander, C. Scott ; Asay, James Russell

关键词: MAGNETIC FIELDS;    MAGNETOHYDRODYNAMICS;    MATERIALS;    POWER;    PRESSURE RANGE MEGA PA 10-100;    SHEAR;    SHEAR PROPERTIES;    USES;   

DOI  :  10.2172/1005055
RP-ID  :  SAND2010-6310
PID  :  OSTI ID: 1005055
Others  :  TRN: US1101253

学科分类：凝聚态物理

美国|英语

来源: SciTech Connect

【 摘 要 】

A new experimental technique to measure material shear strength at high pressures has been developed for use on magneto-hydrodynamic (MHD) drive pulsed power platforms. By applying an external static magnetic field to the sample region, the MHD drive directly induces a shear stress wave in addition to the usual longitudinal stress wave. Strength is probed by passing this shear wave through a sample material where the transmissible shear stress is limited to the sample strength. The magnitude of the transmitted shear wave is measured via a transverse VISAR system from which the sample strength is determined.