Homogenization of Random Masonry Structures - Comparison of Numerical Methods
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F04%3A01099171" target="_blank" >RIV/68407700:21110/04:01099171 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Homogenization of Random Masonry Structures - Comparison of Numerical Methods
Original language description
A simple procedure is presented for the determination of a Periodic Unit Cell (PUC) for a masonry structure made of non-periodically distributed bricks of various sizes and shapes. Such a unit cell, in order to be statistically representative, is derivedby matching geometrical statistics related to the original structure and the idealized unit cell. The required input data are obtained from digitized photographs of real historical structures. The parameters of the unit cell then follow from a minimization problem, defined in terms of properly selected statistical descriptors such as the two-point probability function. The resulting optimization problem is efficiently solved by a global optimization technique based on genetic algorithms. The quality ofthe periodic unit cell is judged by numerical evaluation of effective elastic properties. In this work, three alternative algorithms are considered. The first one is based on well-developed techniques of mathematical homogenization of p.
Czech name
Homogenizace náhodných zděných konstrukcí - porovnání numerických metod
Czech description
Tento příspěvek porovnává tři přístupy k modelování zděných konstrukcí s nepravidelnou strukturou. První z nich je založen na definici periodické jednotkové buňky, která optimálně aproximuje původní strukturu ve smyslu dvojbodové pravděpodobnosti. Druhývyužívá rozšířených Hashin-Shtrikmanových variačních principů; třetí je založen na rychlé Fourierově transformaci.
Classification
Type
D - Article in proceedings
CEP classification
JN - Civil engineering
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
EM 2004 - 17th ASCE Engineering Mechanics Division Conference
ISBN
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ISSN
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e-ISSN
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Number of pages
8
Pages from-to
1-8
Publisher name
University of Delaware
Place of publication
Newark
Event location
Newark
Event date
Jun 13, 2004
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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