scholarly journals NSCD discrete element method for modelling masonry structures

2005 ◽  
Vol 64 (1) ◽  
pp. 65-94 ◽  
Author(s):  
B. Chetouane ◽  
F. Dubois ◽  
M. Vinches ◽  
C. Bohatier
Keyword(s):  
Discrete Element Method ◽  
Discrete Element ◽  
Masonry Structures ◽  
Element Method

scholarly journals A Discrete Element Method based-approach for arched masonry structures under blast loads

2020 ◽  
Vol 216 ◽  
pp. 110721 ◽  
Author(s):  
Filippo Masi ◽  
Ioannis Stefanou ◽  
Victor Maffi-Berthier ◽  
Paolo Vannucci
Keyword(s):  
Discrete Element Method ◽  
Discrete Element ◽  
Masonry Structures ◽  
Blast Loads ◽  
Element Method

Some Examples of Real Masonry Structures Modelling by 3D-NSCD Discrete Element Method

2004 ◽  
Author(s):  
Brahim Chetouane ◽  
Claude Bohatier ◽  
Marc Vinches
Keyword(s):  
Discrete Element Method ◽  
Cultural Heritage ◽  
Discrete Element ◽  
Masonry Structures ◽  
Discrete Modeling ◽  
The Real ◽  
Structural Problems ◽  
Geometric Decomposition ◽  
Continuous Modeling ◽  
Element Method

The aim of this paper is to provide answers to some questions of the archaeologists and leaders of cultural heritage agencies in charge of structures affected by structural problems and instabilities with emphasis on the Arles roman aqueduct in the South of France. The modeling is performed with NSCD discrete element method. The 3D geometric decomposition of the two structures is realistic and is obtained by a conversion from (DXF) CAO format to LMGC90 discrete element code which is dealing with the NSCD method. A comparison with continuous modeling shows the unique possibilities of discrete modeling to account for observed failure phenomena on the real structures.

Discrete element method to model cracking for two layer systems

TAPPI Journal ◽  
2019 ◽  
Vol 18 (2) ◽  
pp. 101-108
Author(s):  
Daniel Varney ◽  
Douglas Bousfield
Keyword(s):  
Discrete Element Method ◽  
Flexural Modulus ◽  
Single Layer ◽  
Discrete Element ◽  
Flexural Stress ◽  
Layer System ◽  
Three Point Bending ◽  
Moving Force ◽  
Coating Layers ◽  
Element Method

Cracking at the fold is a serious issue for many grades of coated paper and coated board. Some recent work has suggested methods to minimize this problem by using two or more coating layers of different properties. A discrete element method (DEM) has been used to model deformation events for single layer coating systems such as in-plain and out-of-plain tension, three-point bending, and a novel moving force picking simulation, but nothing has been reported related to multiple coating layers. In this paper, a DEM model has been expanded to predict the three-point bending response of a two-layer system. The main factors evaluated include the use of different binder systems in each layer and the ratio of the bottom and top layer weights. As in the past, the properties of the binder and the binder concentration are input parameters. The model can predict crack formation that is a function of these two sets of factors. In addition, the model can predict the flexural modulus, the maximum flexural stress, and the strain-at-failure. The predictions are qualitatively compared with experimental results reported in the literature.

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