A study of fragmentation processes using a discrete element method
Ferenc Kun,Hans J. Herrmann +1 more
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TLDR
In this article, a model of solids made from polygonal cells connected via beams is presented for the simulation of fragmentation processes, and the effects of an explosion inside a circular disk and the impact of a projectile are investigated.About:
This article is published in Computer Methods in Applied Mechanics and Engineering.The article was published on 1996-12-01 and is currently open access. It has received 157 citations till now. The article focuses on the topics: Discrete element method & Beam (structure).read more
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The Arlequin method as a flexible engineering design tool
Hashmi Ben Dhia,Guillaume Rateau +1 more
TL;DR: By superposing and gluing models, the Arlequin method offers an extended modelling framework for the design of engineering structures as mentioned in this paper. But this method is not suitable for the modeling of complex structures.
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Discrete element modelling of railway ballast
W. L. Lim,Glenn R. McDowell +1 more
TL;DR: In this paper, the discrete element method has been used to simulate the behavior of railway ballast under different test conditions, including single particle crushing tests and box tests with both spherical balls and 8-ball clumps.
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On the application of a discrete model to the fracture process of cohesive granular materials
TL;DR: In this paper, a two-dimensional model of heterogeneous cohesive frictional solids is presented, where the material structure is idealized by a discrete granular particle assembly, composed of convex polygons which are linked together by simple beams accounting for cohesive effects.
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Discrete element method to simulate continuous material by using the cohesive beam model
TL;DR: The aim of the present work is to improve the ability of DEM to simulate the continuous part of the material using cohesive bond model, and simulates, using a discrete element model, any material defined by a Young's modulus, Poisson's ratio and density, to fit the static and dynamic mechanical behavior of thematerial.
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Review of the current practices in blast-resistant analysis and design of concrete structures:
TL;DR: In this article, the authors highlight the necessity and importance of structural protection against accidental and intentionally malicious blast loads, which are known to be catastrophic, involving personnel injuries and fatalities, economic loss and immeasurable social disruption.
References
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Fractals and fragmentation
TL;DR: In this paper, the use of renormalization group techniques on fragmentation problems is examined and the equations which represent fractals and the size-frequency distributions of fragments are presented, and it is concluded that fragmentation is a scale invariant process and that fractal dimension is a measure of the fragility of the fragmented material.
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Statistical Models for the Fracture of Disordered Media
Hans J. Herrmann,Stéphane Roux +1 more
TL;DR: In this article, the authors introduce basic notions and facts (H.J. Herrmann and S.M. de Gennes) for failure and deformation of various materials.
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Self-organized criticality in fragmenting.
TL;DR: The measured mass distributions of fragments from 26 fractured objects of gypsum, soap, stearic paraffin, and potato show evidence of obeying scaling laws; this suggests the possibility of self-organized criticality in fragmenting.
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An automaton for fractal patterns of fragmentation
TL;DR: In this article, a micromechanical model has been proposed for the formation of fractal patterns of fragmentation in fault zones, based on the preferential fracture, at all length scales, of neighbours of a particle that have the same size as the particle itself.
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Experimental study on the velocity of fragments in collisional breakup
Akira Fujiwara,Akimasa Tsukamoto +1 more
TL;DR: In this article, the motion of fragments following a catastrophic destruction by either a normal or an oblique impact at 2.5-2.9 km sec−1 into cubic and spherical basalt targets was studied with a high-speed framing camera.