Search
Now showing items 1-4 of 4
Performance of Zero-Level Fill-In Preconditioning Techniques for Iterative Solutions with Geotechnical Applications
Publisher: American Society of Civil Engineers
Abstract: Biot's symmetric indefinite linear systems of equations are commonly encountered in finite-element computations of geotechnical problems. The development of efficient solution methods for Biot's linear systems of equations ...
Inexact Block Diagonal Preconditioners to Mitigate the Effects of Relative Differences in Material Stiffnesses
Publisher: American Society of Civil Engineers
Abstract: Finite-element analysis of many soil-structure interaction problems involves material zones of widely differing stiffnesses. The large relative differences in material stiffnesses usually result in an ill-conditioned system ...
Lower-Bound Limit Analysis of Seismic Passive Earth Pressure on Rigid Walls
Publisher: American Society of Civil Engineers
Abstract: Static and seismic passive earth pressure coefficients for the general case of an inclined wall and a sloping cohesionless backfill were computed by using finite-element lower-bound limit analysis based on second-order ...
Axisymmetric Lower-Bound Limit Analysis Using Finite Elements and Second-Order Cone Programming
Publisher: American Society of Civil Engineers
Abstract: In this paper, the formulation of a lower-bound limit analysis for axisymmetric problems by means of finite elements leads to an optimization problem with a large number of variables and constraints. For the Mohr-Coulomb ...
CSV
RIS