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Proračun efektivnog modula smicanja kompozitnih sendvič panela
Calculation of the effective shear modulus of composite sandwich panels
dc.creator | Rebhi, Lamine | |
dc.creator | Dinulović, Mirko | |
dc.creator | Dunjić, Momčilo | |
dc.creator | Grbović, Aleksandar | |
dc.creator | Krstić, Branimir | |
dc.date.accessioned | 2022-09-19T18:13:29Z | |
dc.date.available | 2022-09-19T18:13:29Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 1451-2092 | |
dc.identifier.uri | https://machinery.mas.bg.ac.rs/handle/123456789/2615 | |
dc.description.abstract | U radu je predstavljena metoda proračuna efektivnog modula smicanja kompozitnih panela sa sendvič ispunom. Ovaj koeficijent elastičnosti predstavlja vrlo važnu karakteristiku materijala, posebno kod konstrukcija koje su izložene čistoj torziji ili kombinaciji savijanja i torzije. Strukture koje su ispitivane u ovom istraživanju su ravne ploče načinjene od gornjeg i donjeg kompozitnog lica i ispunom (jezgrom) od šestougaonog kompozitnog sendvič materijala. Polazeći od klasične teorije laminata određen je efektivni modul smicanja gornje i donje ploče za svaki sloj u stoku (laminatu). Ovi slojevi platana se svode u jedan kompozitni sloj sa različitim orijentacijama vlakana i debljine. Da bi se verifikovao ovaj prilaz korišćen je Metod konačnih elemenata da bi se odredila pomeranja, deformacije i naponi u kompozitnim pločama i sendvič ispuni. Dva tipa numeričkih modela su upoređivani: početni model, gde su svi spojevi ploče modelirani sa svojim karakteristikama i drugi model kod kojeg su spojeni u jednu celinu sa svojim ekvivalentnim karakteristikama. | sr |
dc.description.abstract | Calculation Method for the effective shear modulus of composite plates with sandwich cores is presented. This elastic coefficient represents one very important material property especially in constructions subjected to pure torsion and combined bending - torsion. The structures investigated in this research are flat plates made of top and bottom composite facesheets and hexagonal composite material sandwich core. Starting from classical Lamination theory the effective shear modulus of top and bottom plates was determined for each ply in the stack up sequence. These plies were 'lumped into a single composite layer for different fiber orientations and plies thicknesses. To verify this approach Finite element method was used to determine the displacement, stress and strain field on Composite plates with Sandwich Cores. Two types of models were compared: The initial model where all the material components, plates and the core were modeled with their intrinsic properties and 'lumped' model with calculated effective elastic coefficients. | en |
dc.publisher | Univerzitet u Beogradu - Mašinski fakultet, Beograd | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | FME Transactions | |
dc.subject | honeycomb core | en |
dc.subject | equivalent material properties | en |
dc.subject | composite plates | en |
dc.title | Proračun efektivnog modula smicanja kompozitnih sendvič panela | sr |
dc.title | Calculation of the effective shear modulus of composite sandwich panels | en |
dc.type | article | |
dc.rights.license | BY | |
dc.citation.epage | 542 | |
dc.citation.issue | 4 | |
dc.citation.other | 45(4): 537-542 | |
dc.citation.rank | M24 | |
dc.citation.spage | 537 | |
dc.citation.volume | 45 | |
dc.identifier.doi | 10.5937/fmet1704537R | |
dc.identifier.fulltext | http://machinery.mas.bg.ac.rs/bitstream/id/1342/2612.pdf | |
dc.identifier.scopus | 2-s2.0-85021247294 | |
dc.identifier.wos | 000408083800012 | |
dc.type.version | publishedVersion |