How to Get Closer to Reality in Pressure Test Simulations with the SPH Method
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F17%3APU127136" target="_blank" >RIV/00216305:26110/17:PU127136 - isvavai.cz</a>
Result on the web
<a href="http://www.naun.org/main/NAUN/mechanics/2017/a642003-aan.pdf" target="_blank" >http://www.naun.org/main/NAUN/mechanics/2017/a642003-aan.pdf</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
How to Get Closer to Reality in Pressure Test Simulations with the SPH Method
Original language description
The article describes an algorithm for the generation of the spatial geometry of concrete based on a photograph, and its subsequent use in cylindrical pressure test simulations using the Smoothed Particle Hydrodynamics (SPH) method. The aim of the article is to present several simple steps of the algorithm which enable the achievement of variability in the results of simulated pressure load tests conducted on concrete. The main aim is to achieve the best possible match with reality. The fact is that during real load tests it is never possible to obtain two identical results, e.g. the same stress–strain curves for two concrete specimens. They will always differ slightly. However, this is inconsistent with what happens in the case of numerical simulations, where the result is always the same unless there is a change in the input values. The idea of the algorithm is thus to generate the spatial geometry of the structure of a material based on the utilization of a suitably selected and optimized noise function. In a cutting plane through its space, the noise function is visually identical to the photograph of the material. A unique result can be obtained with every additional photograph of the material. The structure generated in this way can be discretized advantageously using the SPH method while also incorporating numerical heterogeneity, which is used to enhance material heterogeneities, e.g. in the area where aggregate and cement binder are in contact. The article describes the whole procedure via an example of a cylindrical pressure test performed on concrete. The functionality of the algorithm is supported by simulation results.
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
<a href="/en/project/GA17-23578S" target="_blank" >GA17-23578S: Damage assessment identification for reinforced concrete subjected to extreme loading</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Mechanics
ISSN
1998-4448
e-ISSN
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Volume of the periodical
2017
Issue of the periodical within the volume
11
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
226-233
UT code for WoS article
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EID of the result in the Scopus database
2-s2.0-85042731414