Analysis of Dynamic in Situ Backfill Property Tests. Report 3. The Modified ONED Program for One-Dimensional Planar Stress Wave Propagation.
Abstract
ONED is a small one-dimensional stress wave propagation computer program for simulating explosive loading on layers of soil. The method of artificial viscosity is used with an explicit computational technique. Materials treated can be solids, porous solids, gases, and explosives. The loading causing the waves can be provided either as a pressure history or by the detonation of an explosive layer. The materials are represented by three-dimensional models with separate treatments for the pressure and deviatoric stresses. The pressure for the porous material is given by loading and unloading curves defined by varying moduli. The deviator stress model describes elastic and plastic behavior with either a Mises or a Coulomb friction yield limit. The detonation of an explosive is provided by either a polytropic gas relation or a tabular isentrope. This version of ONED is an amplification of an earlier version used at the US Army Engineer Waterways Experiment Station for many years. The main changes are the conversion to an explicit computational scheme, use of artificial viscosity, provision for large deformations, addition of explosive detonations, and use of separable material model routines. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1987
- Accession Number
- ADA183527
Entities
People
- Lynn Seaman
Organizations
- SRI International