2 Matching Results

Search Results

Advanced search parameters have been applied.

Stress-point algorithm for a pressure-sensitive multiple-yield-surface plasticity theory

Description: A pressure-sensitive multiple-yield-surface plasticity theory is presented for application to the multi-dimensional cyclic response of soil media. A stress-point numerical algorithm is developed as the basis of a computer module designed to interface with large-scale finite element computer programs used at LLNL.
Date: March 1, 1982
Creator: Hughes, T.J.R.
Partner: UNT Libraries Government Documents Department

Global ice sheet modeling

Description: The University of Maine conducted this study for Pacific Northwest Laboratory (PNL) as part of a global climate modeling task for site characterization of the potential nuclear waste respository site at Yucca Mountain, NV. The purpose of the study was to develop a global ice sheet dynamics model that will forecast the three-dimensional configuration of global ice sheets for specific climate change scenarios. The objective of the third (final) year of the work was to produce ice sheet data for glaciation scenarios covering the next 100,000 years. This was accomplished using both the map-plane and flowband solutions of our time-dependent, finite-element gridpoint model. The theory and equations used to develop the ice sheet models are presented. Three future scenarios were simulated by the model and results are discussed.
Date: May 1, 1994
Creator: Hughes, T.J. & Fastook, J.L.
Partner: UNT Libraries Government Documents Department