Imperial College London
Portrait Picture

Dr Adriana Paluszny

Faculty of Engineering, Department of Earth Science & Engineering

Reader in Computational Geomechanics
 
 
 
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Contact

 

+44 (0)20 7594 7435apaluszn

 
 
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Location

 

RSM 2.48Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Paluszny:2016:10.1016/j.ijsolstr.2015.10.019,
author = {Paluszny, A and Tang, XH and Nejati, M and Zimmerman, RW},
doi = {10.1016/j.ijsolstr.2015.10.019},
journal = {International Journal of Solids and Structures},
pages = {38--51},
title = {A direct fragmentation method with Weibull function distribution of sizes based on finite- and discrete element simulations},
url = {http://dx.doi.org/10.1016/j.ijsolstr.2015.10.019},
volume = {80},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A direct method is proposed to rapidly fragment bodies during impulse-based discrete element method simulations of multiple body interactions. The approach makes use of patterns and size distributions obtained both from experiments, and from numerical models that rigorously compute fragmentation by growing fractures explicitly. Weibull parameters approximate the fragment size distributions as a function of body size and relative contact velocity. Structured domain decomposition is applied on the colliding bodies directly, resulting in a low-cost fragmentation calculation that depends on relative velocity, but which does not require the computation of fracture growth nor explicit element de-bonding, but instead classifies pre-existing mesh elements into the newly fragmented sub-domains. The method is applied to the fragmentation of a single spherical rock fragment, to an irregularly shaped rock fragment, and to the crushing of an array of spherical rock fragments.
AU  - Paluszny,A
AU  - Tang,XH
AU  - Nejati,M
AU  - Zimmerman,RW
DO  - 10.1016/j.ijsolstr.2015.10.019
EP  - 51
PY  - 2016///
SN  - 0020-7683
SP  - 38
TI  - A direct fragmentation method with Weibull function distribution of sizes based on finite- and discrete element simulations
T2  - International Journal of Solids and Structures
UR  - http://dx.doi.org/10.1016/j.ijsolstr.2015.10.019
UR  - https://www.sciencedirect.com/science/article/pii/S0020768315004357?via%3Dihub
UR  - http://hdl.handle.net/10044/1/50735
VL  - 80
ER  -
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