Numerical investigations of fault propagation and forced-fold using a non smooth discrete element method

Renouf, Mathieu; Dubois, Frédéric; Alart, Pierre

doi:10.3166/remn.15.549-570

Cited by 10 publications

(14 citation statements)

References 31 publications

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“…A more detailed discussion on the NSCD method can be found in Moreau (1998), Moreau (1988), Jean (1999), Jean et al (2001), Jean and Moreau (1992), Renouf et al (2006a), Renouf et al (2004b).…”

Section: Numerical Scheme For Time Integrationmentioning

confidence: 99%

Application of the NSCD method to analyse the dynamic behaviour of stone arched structures

Rafiee

Vinches

Bohatier

2008

International Journal of Solids and Structures

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a b s t r a c tIn this paper, a masonry arch is simulated in order to assess both its structural and seismic vulnerability. The non-smooth contact dynamics (NSCD) computational method is used to simulate this type of structure as a collection of bodies under the hypothesis of unilateral constraints and frictional contact, with or without cohesion. Sinusoidal oscillations in three dimensions and real earthquake data have been applied to the supporting base element of the arch model.The primary aim of this study is to better understand the dynamic behaviour of the masonry arch, a typical component of historic unreinforced masonry (URM) structures. This study also assesses the influences of the input parameters on the mechanical and dynamic behaviour of the arch structure. Its collapse mechanism is studied for both cohesive and non-cohesive contact.In addition, we examine the behaviour under seismic loading of the Arles aqueduct, a real historical arched structure located in the south-east of France. Significant information can be obtained from the comparison of the results of advanced numerical analysis, taking into account the precise geometry of the model, the mechanical characteristics of the materials and the observation of the in situ monuments after their collapse.

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Section: Numerical Scheme For Time Integrationmentioning

confidence: 99%

Application of the NSCD method to analyse the dynamic behaviour of stone arched structures

Rafiee

Vinches

Bohatier

2008

International Journal of Solids and Structures

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“…When a dense granulate is submitted with imposed velocities on its boundary, the two drawbacks are added leading in some cases to accumulation of the interpenetration in some localized regions. For instance the simulation of a sandbox experiment, useful in geomechanics for fold formation in sedimental soil layers [8], leads to such situations in the bottom corner close to the pushing wall.…”

Section: Introductionmentioning

confidence: 99%

How to overcome indetermination and interpenetration in granular systems via nonsmooth contact dynamics. An exploratory investigation

Alart

2014

Computer Methods in Applied Mechanics and Engineering

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a b s t r a c tThe present paper is an exploratory investigation to overcome difficulties encountered in the simulation of dense granulates when a NSCD approach is used. Some simple examples permit identification of impulse indetermination as the main cause of the failure or the slowdown of the numerical algorithm. We propose to deal directly with the space of impulses with null resulting momentum. A prediction-correction scheme is detailed and enriched to restrict at best the interpenetration. Finally sophisticated tools are developed to preserve the sparsity of the matrices and consequently to ensure an efficient implementation of an adapted nonsmooth solver.

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“…This type of method emerged in the early 70s to model the evolution of rockfalls [95,96]. It was quickly adapted to modelling numerous problems involving media with divided features (geophysical structures [97], ballast [98], masonry [99], etc. ).…”

Section: Discrete Approachesmentioning

confidence: 99%

Numerical tribology of a dry contact

Renouf

Massi

Fillot

et al. 2011

Tribology International

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104

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Tribologists are confronted on a daily basis by the need to understand the causes and consequences of friction on the behaviour of bodies in contact. Understanding contact behaviour is not only a scientific curiosity but the key to solving numerous industrial issues. Numerical tools have been developed to overcome the problems encountered in experiments due to limitations in the local dynamic analysis of multi-scale systems (mechanisms, bodies in contact, interfaces). More than an exhibition of numerical results, the present paper proposes reviewing the literature on the numerical tribology of dry contacts by analysing the different scales involved. © 2011 Elsevier Ltd. All rights reserved

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Numerical investigations of fault propagation and forced-fold using a non smooth discrete element method

Abstract: ABSTRACT. Geophysical

Cited by 10 publications

References 31 publications

Application of the NSCD method to analyse the dynamic behaviour of stone arched structures

Application of the NSCD method to analyse the dynamic behaviour of stone arched structures

How to overcome indetermination and interpenetration in granular systems via nonsmooth contact dynamics. An exploratory investigation

Numerical tribology of a dry contact

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