The effect of friction on simulated containment of underground nuclear explosions

Conference · Thu Nov 01 00:00:00 EST 1990

OSTI ID:6147482

Attia, A V

The strength of the residual stress field is used as an important indicator in assessing the containment of underground nuclear explosions. Containment analysis using the COTTAGE geology shows considerable cracking in the hard Paleozoic layer, just below the cavity. The coefficient of friction is the ratio of total shear stress applied to a closed fracture surface to normal applied compressive total stress. Without any friction, the Paleozoic residual stress field is weakest. As the friction coefficient is increased from 0 to 0.5, the Paleozoic residual stress field is strengthened. A further increase of the friction coefficient from 0.5 to 0.8 shows strengthened where cracks are closed and weakening where cracks remain open. 4 refs., 4 figs., 1 tab.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• Sponsoring Organization: DOE/DP
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6147482
• Report Number(s): UCRL-JC-105337; CONF-9011149-2; ON: DE91005064
• Resource Relation: Conference: 1990 nuclear explosives code developers' conference, Monterey, CA (USA), 6-9 Nov 1990
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
NUCLEAR EXPLOSIONS
COMPUTERIZED SIMULATION
CONTAINED EXPLOSIONS
CRACKS
FUNCTIONS
STRESSES
UNDERGROUND EXPLOSIONS
YIELD STRENGTH
EXPLOSIONS
MECHANICAL PROPERTIES
SIMULATION
450201* - Military Technology
Weaponry
& National Defense- Nuclear Explosions & Explosives- Containment