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Elastoplastic damage analysis of trusses subjected to cyclic loading

Elastoplastična analiza oštećenja rešetkastih nosača pri cikličnom opterećenju

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2014
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Authors
Perović, Zoran
Šumarac, Dragoslav
Article (Published version)
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Abstract
In the present paper, implementation of Preisach model of hysteresis to elastoplastic analysis of trusses subjected to cyclic is shown. It is also shown that damage effects can be included in presented analysis by introducing basic concepts of continuum damage mechanics. Using finite element method, equilibrium equations are obtained and algorithm for numerical solution is defined. Some advantages of this approach are underlined through several numerical examples.
U ovom radu, prikazana je primena Prajzakovog modela histerezisa, u strukturnoj analizi rešetkastih nosača koji su izloženi cikličnom opterećenju. Takođe je prikazano da se efekti oštećenja mogu uključiti u prikazanu analizu uvođenjem osnovnih principa mehanike oštećenja u kontinuumu. Koristeći metodu konačnih elemenata, jednačine ravnoteže i algoritam za numeričko rešavanje je definisan. Neke prednosti ovakvog pristupa su naglašene kroz nekoliko numeričkih primera.
Keywords:
cyclic plasticity / Preisach model / trusses / damage / ciklična plastičnost / Prajzakov model / rešetkasti nosači / oštećenje
Source:
Zbornik radova Građevinskog fakulteta, Subotica, 2014, 24, 77-83
Publisher:
  • Univerzitet u Novom Sadu - Građevinski fakultet, Subotica

DOI: 10.14415/zbornikGFS24.007

ISSN: 0352-6852

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URI
http://grafar.grf.bg.ac.rs/handle/123456789/598
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  • Radovi istraživača / Researcher's publications
  • Катедра за техничку механику и теорију конструкција
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