Lattice Formation in Liquefaction (Paperback) (ISBN-13: 9783639045956)

Liquefaction is the loss of shear resistance in a soil under various loa-ding conditions. It is an important topic of study in seismic en-gineering due to its potential to cause damage to structures that otherwise could survive a seismic event. In liquefaction, the movement of particles is generally viewed as random and isotropic. A numerical study has been performed based on the hypothesis that as lique-faction occurs, initially randomly placed particles become organized into a lattice structure. As a result, the initial behavior may be iso-tropic, but there is a progressive movement to anisotropic behavior as cyclic shearing is applied. The study is performed under ideal conditions considering spherically shaped particles of the same size in pure shear. The results of the study showed that the particles organize to the same lattice structure regardless of friction coefficient or shear plane selection. Conse-quently, this study provides a tool for calibrating constitutive models related to liquefaction. It also provides an accurate discrete element method for evaluating particle dynamics.

Author: Robert Spears
ISBN-10: 3639045955
ISBN-13: 9783639045956
Publisher: VDM Verlag Dr. Mueller E.K.
Language: English
Published: 06/18/2008
Pages: 324
Format: Paperback
Weight: 0.96lbs
Size: 9.00h x 6.00w x 0.68d