Modeling the explosion-source region: An overview
- Lawrence Livermore National Lab., CA (United States)
The explosion-source region is defined as the region surrounding an underground explosion that cannot be described by elastic or anelastic theory. This region extends typically to ranges up to 1 km/(kt){sup 1/3} but for some purposes, such as yield estimation via hydrodynamic means (CORRTEX and HYDRO PLUS), the maximum range of interest is less by an order of magnitude. For the simulation or analysis of seismic signals, however, what is required is the time resolved motion and stress state at the inelastic boundary. Various analytic approximations have been made for these boundary conditions, but since they rely on near-field empirical data they cannot be expected to reliably extrapolate to different explosion sites. More important, without some knowledge of the initial energy density and the characteristics of the medium immediately surrounding the explosion, these simplified models are unable to distinguish chemical from nuclear explosions, identify cavity decoupling, or account for such phenomena as anomalous dissipation via pore collapse.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 90989
- Report Number(s):
- LA-UR-93-3839; CONF-930397-; ON: DE95003509; TRN: 95:018283
- Resource Relation:
- Conference: Numerical modeling for underground nuclear test monitoring symposium, Durango, CO (United States), 23-25 Mar 1993; Other Information: PBD: Nov 1993; Related Information: Is Part Of Proceedings of the Numerical Modeling for Underground Nuclear Test Monitoring Symposium; Taylor, S.R.; Kamm, J.R. [eds.]; PB: 404 p.
- Country of Publication:
- United States
- Language:
- English
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35 ARMS CONTROL
99 MATHEMATICS
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MISCELLANEOUS
NUCLEAR EXPLOSIONS
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MATHEMATICAL MODELS
UNDERGROUND EXPLOSIONS
COMPUTERIZED SIMULATION
ENERGY DENSITY
CHEMICAL EXPLOSIONS
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H CODES