β Scribed by S. Pietruszczak; D. F. E. Stolle
No coin nor oath required. For personal study only.
In this paper, liquefaction potential of a loose sand deposit subjected to an earthquake loading is evaluated. The analysis is performed by using a finite element technique incorporating the equations of dynamics of saturated porous elastoplastic media. The soil response is modelled by an anisotropic hardening rule, similar to that as proposed by Poorooshasb and Pietruszczak.' The concept is based on the theory of bounding surface plasticity incorporating a non-associated flow rule and the idea of reflected plastic potential. The present paper provides a modified formulation to that discussed in Reference 1. Modifications are aimed at simplifying the concept for numerical implementations.
'A finite size of the yield surface is required in order to avoid a ratchetting dect.
π SIMILAR VOLUMES
## Abstract This paper considers the dynamical behaviour of a structural model with foundation uplift. The equations of motion of the system considered are derived for large displacements thus allowing for the eventual overturning of the system. The transition conditions between successive phases o
Optimal control of base-isolated and non-base-isolated buildings subjected to earthquake excitation is aonsidered. The control force at any instant is determined on-line through minimizing a quadratic time-dependent performance index based on the total energy imparted to the structure and the contro