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Title: The effect of friction on simulated containment of underground nuclear explosions

Abstract

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.

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

Citation Formats

Attia, A V. The effect of friction on simulated containment of underground nuclear explosions. United States: N. p., 1990. Web.
Attia, A V. The effect of friction on simulated containment of underground nuclear explosions. United States.
Attia, A V. 1990. "The effect of friction on simulated containment of underground nuclear explosions". United States. https://www.osti.gov/servlets/purl/6147482.
@article{osti_6147482,
title = {The effect of friction on simulated containment of underground nuclear explosions},
author = {Attia, A V},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/6147482}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Nov 01 00:00:00 EST 1990},
month = {Thu Nov 01 00:00:00 EST 1990}
}

Conference:
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