Modeling of Liquefaction using Two-phase FEM with UBC3D-PLM model. (2017)

• Record Type: Journal Article
• Authors: Wobbes, Elizaveta; Beuth, Lars; Vuik, Cornelis; Stolle, Dieter
• Is Part Of: Procedia engineering. Volume 175(2017)
• Page Start: 349
• Page End: 356
• Publication Date: 2017
• Subjects: MPM -- elastoplastic model -- liquefaction -- cyclic loading.; Engineering -- Congresses; Engineering -- Periodicals; Engineering; Conference proceedings; Periodicals; 620.005
• DOI: 10.1016/j.proeng.2017.01.043
• Languages: English
• ISSNs: 1877-7058

Abstract

Abstract: Soil liquefaction describes a loss of strength of saturated sand upon sudden or cyclic loading. A slight disturbance of such a soil's fabric might lead to severe damage, e.g. the collapse of sea dikes. Accurate modeling of the state transition between saturated soil and a liquefied soil-water mixture, as well as post-liquefaction phenomena, is crucial for the prediction of such damage. However, developing an appropriate numerical model remains a challenging problem, especially when the simulation involves dynamic large deformation processes. In order to make a first step towards an accurate simulation of soil liquefaction, a two-phase formulation of the finite element method (FEM) in conjunction with the elastoplastic UBC3D-PLM model is investigated. The performance of this approach is analyzed based on a shaking table benchmark.