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Analysis of Dynamically Penetrating Anchor based on Coupled Eulerian-Lagrangian (CEL) Method
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 Title & Authors
Analysis of Dynamically Penetrating Anchor based on Coupled Eulerian-Lagrangian (CEL) Method
Kim, Youngho; Jeong, Sang-Seom;
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 Abstract
A fundamental study of the dynamically penetrating anchor (DPA - colloquially known as torpedo anchor) embedded into deep seabed was conducted using measurement data and numerical approaches. Numerical simulation of such a structure penetration was often suffered by severe mesh distortion arising from very large soil deformation, complex contact condition and nonlinear soil behavior. In recent years, a Coupled Eulerian-Lagrangian method (CEL) has been used to solve geomechanical boundary value problems involving large deformations. In this study, 3D finite element analyses using the CEL formulation are carried out to simulate the construction process of dynamic anchors. Through comparisons with results of field measurements, the CEL method in the present study is in good agreement with the general trend observed by in-situ measurements and thus, predicts a realistic large deformation movement for the dynamic anchors by free-fall dropping, which the conventional FE method cannot. Additionally, the appropriate parametric studies needed for verifying the characteristic of dynamic anchor are also discussed.
 Keywords
Dynamically penetrating anchor (DPA);Torpedo anchor;Large deformation;Coupled eulerian-lagrangian (CEL);Finite element;Free-fall dropping;
 Language
Korean
 Cited by
1.
대변형 해석기법(Coupled Eulerian-Lagrangian)을 이용한 항타 관입성 모사의 3차원 해석,고준영;정상섬;이승연;

한국지반공학회논문집, 2015. vol.31. 8, pp.29-38 crossref(new window)
2.
대변형 해석기법(Coupled Eulerian-Lagrangian)을 이용한 3차원 토석류 거동분석,정상섬;이광우;고준영;

한국지반공학회논문집, 2015. vol.31. 12, pp.45-57 crossref(new window)
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