How to Handle Irregular Distribution of SPH Particles in Dynamic Fracture Analysis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F16%3APU120589" target="_blank" >RIV/00216305:26110/16:PU120589 - isvavai.cz</a>

Result on the web

<a href="http://www.iaras.org/iaras/journals/caijtam/how-to-handle-irregular-distribution-of-sph-particles-in-dynamic-fracture-analysis" target="_blank" >http://www.iaras.org/iaras/journals/caijtam/how-to-handle-irregular-distribution-of-sph-particles-in-dynamic-fracture-analysis</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

How to Handle Irregular Distribution of SPH Particles in Dynamic Fracture Analysis

Original language description

The failure of quasi-brittle materials is still a topical issue today, as no comprehensive theory that is able to describe all the ways in which stress can occur without the introduction of special variables has yet been accepted. The numerical methods which are commonly used for the investigation of extensive problems that include fracture mechanics often need various extensions so that they are able to solve a given task successfully. The Smoothed Particle Hydrodynamics (SPH) method was not used in connection with quasi-brittle material failure for a long time due to the fact that it was not conceptually designed for the investigation of structural mechanics issues, but rather for hydrodynamics. However, in cases of high-speed stress, it is advantageous to use the SPH method because materials with structural strength behave in a similar way to fluids in such situations. Unfortunately, even this method suffers from false numerical dependencies which can influence the results of simulations in a negative manner. It can be concluded from executed tests that the initial regularity of the distribution of SPH particles plays an important role regardless of the investigated task. The contribution describes a test from the area of the simulation of dynamically loaded concrete structures using the SPH method. The primary subject of discussion is the influence of the initial distribution of particles on the results of simulations, as well as a possible solution to problems which arise due to the poor regularity of particle distribution. The simulations in question are compared with the experiment and results obtained via the Finite Element Method.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JM - Structural engineering

OECD FORD branch

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Project

<a href="/en/project/GA14-25320S" target="_blank" >GA14-25320S: Aspects of the use of complex nonlinear material models</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

International Journal of Theoretical and Applied Mechanics

ISSN

2367-8984

e-ISSN

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Volume of the periodical

2016

Issue of the periodical within the volume

1

Country of publishing house

BG - BULGARIA

Number of pages

6

Pages from-to

212-217

UT code for WoS article

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EID of the result in the Scopus database

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