Advances in the DEM and Coupled DEM and FEM Techniques in Non Linear Solid Mechanics

Oñate, Eugenio; Zárate, Francisco; Celigueta, Miguel Ángel; González, José Manuel; Miquel, Juan Carlos; Carbonell, Josep Maria; Arrufat, Ferrán; Latorre, Salvador; Santasusana, Miquel

doi:10.1007/978-3-319-60885-3_15

Cited by 9 publications

(10 citation statements)

References 26 publications

(54 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The combined FEM×DEM method can be used to simulate and study the behavior of structural elements, for example, concrete beams [22]. The entire concrete beam is simulated by the FEM.…”

Section: Applicationsmentioning

confidence: 99%

Coupled finite-discrete element modeling and potential applications in civil engineering

Kiên

Hoang

2021

STCE

View full text Add to dashboard Cite

Since its appearance at the last of seventy decades, the Discrete Element Modeling (DEM) has been widely used in the modeling of geomaterials but regrettably limited to small scales problems by considering grains interactions. Recently, a new trend has emerged in combining DEM with other methods. The coupled approach allows extending the methods toward a wide range of civil engineering applications. Among them, FEM×DEM coupling has been the topic of research over the past decade. The FEM×DEM coupling has been mainly developed in two categories: direct interaction and multi-scale coupled models. In the first regard, this paper summarizes the basic principle of FEM and DEM, then reviews a number of possible direct coupling strategies between FEM and DEM together with potential applications in civil engineering. The second objective is to develop a model that combines these two above mentioned methods in a multi-scale approach. The results obtained by the developed model have been proved to efficiently tackle the complicated problem in engineering applications by assessing both macro and micro features and establishing the linking information between them.

show abstract

“…The combined FEM×DEM method can be used to simulate and study the behavior of structural elements, for example, concrete beams [22]. The entire concrete beam is simulated by the FEM.…”

Section: Applicationsmentioning

confidence: 99%

Coupled finite-discrete element modeling and potential applications in civil engineering

Kiên

Hoang

2021

STCE

View full text Add to dashboard Cite

show abstract

“…The FEM can be used to simulate structural response [166], elastic wave propagation [167], heat conduction [168], and large deformation and large displacement of slopes on a macro scale [169], but it is impossible to analyze the discontinuous surface or to simulate the progressive destruction process of materials [170]. The DEM-FEM coupling analysis method can simulate the machining process [171,172] and thermal damage [173,174] of intact brittle materials and brittle materials with discontinuous surfaces, and simulate the generation and propagation of cracks after using the relevant criteria of fracture mechanics [171].…”

Section: Dem-femmentioning

confidence: 99%

Discrete element modeling of the machining processes of brittle materials: recent development and future prospective

Jiang

Tang

et al. 2020

Int J Adv Manuf Technol

View full text Add to dashboard Cite

In recent years, the discrete element method (DEM) has been used to model the bulk material, especially for the brittle materials (such as rocks, ceramics, concrete, ice, etc.) with various mechanical properties or responses by setting serials of contact properties (such as bonds) in the particle assembly. These bonds can withstand a certain amount of force and/or moment, so that the stresses executed in the bond can be used for determining the initiation and propagation of micro-crack. There are increasing evidences over the last twenty years that the DEM is becoming an effective numerical method to simulate the cracking, crushing and deformation of continuous media under external loads. The DEM has now been widely used in the field of processing and machining of rock, ceramic, concrete and other brittle materials. In this paper, the theoretical principles, formulations, contact models as well as the numerical solving processes of DEM are introduced. The applications of DEM for the machining processes of brittle and rigid materials such as ceramics are described and reviewed in detail, with future development trend also discussed.

show abstract

“…Los ejemplos que se han presentado muestran las posibilidades de la técnica FEM-DEM para el cálculo no lineal de estructuras de hormigón en masa y armado, así como en estructuras de mampostería. La técnica FEM-DEM es también aplicable al estudio de la fractura en macizos rocosos [31,32].…”

Section: Conclusionesunclassified

Predicción de fracturas en estructuras de hormigón combinando los métodos de elementos finitos y de elementos discretos

Zárate

Oñate

2018

Hormigón y Acero

Self Cite

View full text Add to dashboard Cite

El presente trabajo plantea los conceptos básicos y de aplicación de la estrategia que combina los métodos de elementos finitos y de elementos discretos para el estudio de la propagación de fracturas en estructuras de hormigón. El cálculo de la estructura, modelada como un continuo, se inicia con los métodos de elementos finitos y se hace uso de los métodos de elementos discretos para iniciar y hacer crecer las grietas que puedan aparecer en la estructura. Esta metodología ha sido propuesta por los autores en 2 y 3 dimensiones. Recientemente se ha agregado el uso de elementos unidimensionales de acero embebidos en el continuo para modelar el efecto resistente del armado en estructuras de hormigón. En el trabajo se presentan diferentes ejemplos de aplicación al estudio de la rotura de piezas y estructuras de hormigón en masa y armado, así como la rotura múltiple de una estructura histórica de mampostería debida a un terremoto.

show abstract

Advances in the DEM and Coupled DEM and FEM Techniques in Non Linear Solid Mechanics

Abstract: In this chapter we present recent advances in the Discrete Element Method (DEM) and in the coupling of the DEM with the Finite Element Method (FEM) for solving a variety of problems in non linear solid mechanics involving damage, plasticity and multifracture situations.

Cited by 9 publications

References 26 publications

Coupled finite-discrete element modeling and potential applications in civil engineering

Coupled finite-discrete element modeling and potential applications in civil engineering

Discrete element modeling of the machining processes of brittle materials: recent development and future prospective

Predicción de fracturas en estructuras de hormigón combinando los métodos de elementos finitos y de elementos discretos

Contact Info

Product

Resources

About