Applicability of finite difference and finite element methods as a post-processing tool for strain analysis of fold-and-thrust belt model developed with the discrete element method

In recent year, the foundations of the stability analysis of slope were provided by the development of finite element and discrete element method. Using finite element and discrete element method, the stability analysis of three typical slopes of shiwu thorp of Quzhou was carried out. The safety factors of slope profile were obtained. Based on the judgment criterion of slope stability，the slopes stability of shiwu thorp was judged. The results showed that the way to analyze the stability of soil slope is feasible.

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Evaluating the Seismic Capacity of Dry-Joint Masonry Arch Structures via the Combined Finite-Discrete Element Method

Applied Sciences ◽

10.3390/app11188725 ◽

2021 ◽

Vol 11 (18) ◽

pp. 8725

Author(s):

Wangpeng Li ◽

Xudong Chen ◽

Hongfan Wang ◽

Andrew H. C. Chan ◽

Yingyao Cheng

Keyword(s):

Finite Element ◽

Discrete Element Method ◽

Discrete Element ◽

Element Formulation ◽

Discrete Elements ◽

Seismic Capacity ◽

Masonry Arch ◽

Highly Nonlinear ◽

Arch Structures ◽

Element Method

The behaviour of dry-joint masonry arch structures is highly nonlinear and discontinuous since they are composed of individual discrete blocks. These structures are vulnerable to seismic excitations. It is difficult for traditional methods like the standard finite element method (FEM) to simulate masonry failure due to their intrinsic limitations. An advanced computational approach, i.e., the combined finite-discrete element method (FDEM), was employed in this study to examine the first-order seismic capacity of masonry arches and buttressed arches with different shapes subjected to gravity and constant horizontal acceleration. Within the framework of the FDEM, masonry blocks are discretised into discrete elements. A finite element formulation is implemented into each discrete element, providing accurate predictions of the deformation of each block and contact interactions between blocks. Numerical examples are presented and validated with results from the existing literature, demonstrating that the FDEM is capable of capturing the seismic capacities and hinge locations of masonry arch structures. Further simulations on geometric parameters and friction coefficient of masonry buttressed arches were conducted, and their influences on the seismic capacities are revealed.

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Simulation of Structural Collapse with Coupled Finite Element-Discrete Element Method

Computational Structural Engineering ◽

10.1007/978-90-481-2822-8_14 ◽

2009 ◽

pp. 127-135 ◽

Cited By ~ 8

Author(s):

Xinzheng Lu ◽

Xuchuan Lin ◽

Lieping Ye

Keyword(s):

Finite Element ◽

Discrete Element Method ◽

Discrete Element ◽

Structural Collapse ◽

Element Method

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Approche couplée éléments discrets/finis pour la simulation d’un impact sur ouvrage

European Journal of Computational Mechanics ◽

10.13052/remn.16.989-1009 ◽

2007 ◽

pp. 989-1009

Author(s):

Emmanuel Frangin ◽

Philippe Marin ◽

Laurent Daudeville

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Discrete Element Method ◽

Dynamic Loading ◽

Concrete Slab ◽

Discrete Element ◽

The Finite Element Method ◽

Large Structure ◽

Wave Reflections ◽

Element Method

The paper deals with combined finite/discrete element method to study structures under severe dynamic loading, like impact. The discrete element method take naturally into account the non linear phenomena, it is used in the vicinity of the impacted zone. The finite element method is used to reduce the time of computation in order to carry out large structure analyses. The aim of the paper is to discuss the way to reduce non physical wave reflections; it presents an application on a rock impact on a concrete slab.

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