Discrete element method (DEM) modeling of fracture and damage in the machining process of polycrystalline SiC

Tan, Yuanqiang; Yang, Dongmin; Sheng, Yong

doi:10.1016/j.jeurceramsoc.2008.07.060

Cited by 161 publications

(92 citation statements)

References 28 publications

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“…The contact detection algorithm is used to determine whether two particles are interactive, and once they interact, then the interaction law must be used to calculate the interaction forces. In previous research, LBM and SPH are mainly used for simulating fluid flow [7,8] whilst DEM is mainly used for simulating granular flow [9] and solid fracture [10]. Coupled models like SPH-SPH [11], SPH-DEM [12], IBM [13,14] and LBM-DEM [15] have been developed for fluidstructure or fluid-particle interactions.…”

Section: Typical Particle Methods Are Molecular Dynamics (Md) Discrementioning

confidence: 99%

A coupled SPH-DEM model for fluid-structure interaction problems with free-surface flow and structural failure

Yang

Wright

2016

Computers & Structures

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128

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Section: Typical Particle Methods Are Molecular Dynamics (Md) Discrementioning

confidence: 99%

A coupled SPH-DEM model for fluid-structure interaction problems with free-surface flow and structural failure

Yang

Wright

2016

Computers & Structures

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128

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“…The method was first developed in the early 1980s (1). More recently, researchers have used this method to study damage in heterogeneous solids, such as concrete (2) or rock (3), and homogeneous materials, such as ceramics (4).…”

Section: Introductionmentioning

confidence: 99%

Using the discrete element method to simulate brittle fracture in the indentation of a silica glass with a blunt indenter

Debenath

Jebahi

Iordanoff

et al. 2013

Computer Methods in Applied Mechanics and Engineering

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. AbstractThe mechanical behavior of materials is usually simulated by a continuous mechanics approach. However, noncontinuous phenomena such as multi-fracturing cannot be accurately simulated using a continuous description. The discrete element method (DEM) naturally accounts for discontinuities and is therefore a good alternative to the continuum approach.This study continues previous work in which a DEM model was developed to quantitatively simulate an elastic material with the cohesive beam bond model. The simulation of brittle cracks is now tackled. This goal is attained by computing a failure criterion based on an equivalent hydrostatic stress. This microscopic criterion is then calibrated to fit experimental values of the macroscopic failure stress. The simulation results are compared to experimental results of indentation tests in which a spherical indenter is used to load a silica glass, which is considered to be a perfectly brittle elastic material.

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“…On the other hand, discrete element method (DEM) [12] combined the statistical analysis with the concept of physical bonds from Molecular Dynamics (MD), and offered an intrinsic advantage over other numerical methods in modeling microscopic and multiphased materials. DEM was proposed by Cundall in the context of rock mechanics [12] and has been implemented in many other fields, such as geomaterials [13], granular materials [14], concrete [15], ceramics [16,17], particle-fluid [18] and particle-gas two phase flow [19]. Kim et al [20,21] used DEM to simulate the damage of asphalt concrete which is a typical example of two-phase composite materials.…”

Section: Introductionmentioning

confidence: 99%

Microstructure effects on transverse cracking in composite laminae by DEM

Sheng¹,

Yang²,

Tan³

et al. 2010

Composites Science and Technology

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A particle discrete element method (DEM) was employed to simulate transverse cracking in laminated fiber reinforced composites. The microstructure of the laminates was modeled by a DEM model using different mechanical constitutive laws and materials parameters for different constituents, i.e., fiber, matrix and fiber/matrix interface. Rectangular, hexagonal and random fiber distributions were simulated to study the effect of fiber distribution on the transverse cracking. The initiation and dynamic propagation of transverse cracking and interfacial debonding were all captured by the DEM simulation, which showed similar patterns to those observed from experiments. The effect of fiber volume fraction was also studied for laminae with randomly distributed fibers. It was found that the distribution and volume fraction of fibers affected not only the transverse cracking path, but also the behavior of matrix plastic deformation and fiber/matrix interface yielding in the material.

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Discrete element method (DEM) modeling of fracture and damage in the machining process of polycrystalline SiC

Cited by 161 publications

References 28 publications

A coupled SPH-DEM model for fluid-structure interaction problems with free-surface flow and structural failure

A coupled SPH-DEM model for fluid-structure interaction problems with free-surface flow and structural failure

Using the discrete element method to simulate brittle fracture in the indentation of a silica glass with a blunt indenter

Microstructure effects on transverse cracking in composite laminae by DEM

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