桶形基础液压下沉过程的耦合欧拉拉格朗日有限元法分析闫澍旺.pdf

38 1 Vol.38 No. 1 2017 1 Rock and Soil Mechanics Jan. 2017 DOI 10.16285/j.rsm.2017.01.031 1 1 1 2 3 1. 300072 2. 3. CEL CEL CEL TU 470 A (2017) 01 0247 06 Coupled Eulerian-Lagrangian finite element analysis of suction caisson penetration processes under hydraulic pressure 1 1 1 2 3 YAN Shu-wang , LIN Shu , HUO Zhi-liang , CHU Jian , GUO Wei 1. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China; 2. Department of Civil, Construction Environmental Engineering, Iowa State University, Ames, USA; 3. School of Civil and Environmental Engineering, Nanyang Technological University, Singapore Abstract: Earth penetration in geotechnical engineering is difficult to model, due to its transient, coupled nature of the impact event. The interaction between the penetrator and the target is inherently coupled due to the vastly different material response. It is a challenging subject to simulate such problems properly. The traditional finite element method presents difficulties in convergence, unreasonable assumptions and professional interpolation routines. Nevertheless, the coupled Eulerian-Lagrangian method which combines the advantages of Lagrangi