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Prilog dinamičkoj analizi višeslojnih anizotropnih ploča

Multilayered anisotropic plate dynamic analysis

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1992
Disertacija.pdf (4.584Mb)
Author
Vuković, Lela
Mentor
Bojanić, Zoran
Committee members
Dragović, Tomislav
Krivošić, Ilija
Simonović, Velimir
Petrović, Zlatko
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Abstract
Razmatranjem nelinearne teorije višeg reda istaknute su velike prednosti ovakve analize za višeslojne anizotropne strukture tipa ploča. Rešenja pomeranja ukazuju na prednost analize višeg reda, jer dobijena pomeranja opisuju kretanje ploče kao deformabilnog tela. Nelinearnim kinematskim relacijama određene su deformacije i na osnovu linearnih konstitutivnih veza naponi. Naponi sa uvedenim “međuslojevima” otvaraju mogućnost potpunijeg poznavanja naponskog stanja u višeslojnom laminatu. Posmatrano je slobodno oscilovanje ploče i kretanje ploče pod dejstvom transverzalne harmonijske prinude. Za uspostavljen režim oscilovanja određene su sve karakteristike neophodne za dimenzionisanje struktura ovog tipa.
Nonlinear higher order theory of plate is accepted to describe the advantage of this theory for multilayered anisotropic structure. Displacements solutions, as for three-dimensional body, are determinate via higher order theory. With nonlinear kinematic relations the strains are solved and the stresses with linear constitutive relations. Stacking sequence with “interface” has special purpose in delamination identification, because it gives more information about stress field in laminate. Free vibrations and forced transversal steady state oscillations without damping for annular plate are presented with displacements, strains and stresses, which are prescribed as function of time. Amplitude stresses are very important for structure failure improvements.
Faculty:
University of Belgrade, Faculty of Mechanical Engineering
Date:
27-02-1992
Keywords:
višeslojna anizotropna ploča / multilayered anisotropic plate / nelinearna teorija ploča višeg reda / “međuslojevi” u laminatu / slobodno oscilovanje višeslojne ploče / prinudno oscilovanje višeslojne ploče / projektne promenljive / optimalno projektovanje višeslojne strukture / nonlinear higher order plate theory / “interface’ in laminate / undumped free vibration of multilayered plate / transversal forced vibration of multilayered plate / design variables / optimal multilayered structure design
[ Google Scholar ]
URI
http://eteze.bg.ac.rs/application/showtheses?thesesId=1750
http://nardus.mpn.gov.rs/handle/123456789/2331
https://fedorabg.bg.ac.rs/fedora/get/o:9358/bdef:Content/download
http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=8509711

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