| Numéro |
J. Phys. Colloques
Volume 49, Numéro C3, Septembre 1988
DYMAT 88 - 2nd International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
|
|
|---|---|---|
| Page(s) | C3-483 - C3-488 | |
| DOI | https://doi.org/10.1051/jphyscol:1988368 | |
DYMAT 88 - 2nd International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
J. Phys. Colloques 49 (1988) C3-483-C3-488
DOI: 10.1051/jphyscol:1988368
Department of Civil Engineering, University of California, Berkeley, CA 94720, U.S.A.
J. Phys. Colloques 49 (1988) C3-483-C3-488
DOI: 10.1051/jphyscol:1988368
DYNAMIC MATERIAL CHARACTERIZATION USING SPHERICAL EXPLOSION WAVES
J.L. SACKMANDepartment of Civil Engineering, University of California, Berkeley, CA 94720, U.S.A.
Abstract
A method is presented for computing the creep function which governs the propagation of pressure waves in a linear medium. This function is determined from measurements, at different locations in a medium, of radial particle velocity histories produced by the detonation of an embedded spherically symmetric explosive charge. The method is used to analyze date obtained from tests on large blocks of polymethylmethacralate and of Sierra white granite performed at the Lawrence Livermore National Laboratory. Numerical predictions of particle velocity histories based on the identified creep function are then compared with experimental results.