Vol.2, No 9, 1999 pp. 929-938
UDC: 539.3:531.3
APPLICATION
ON A MORE ACCURATE BENDING THEORY OF A SANDWICH PLATE WITH A LIGHT CORE
Zlatibor Vasić
Faculty of Mechanical Engineering, University
of Priština
Abstract. The application of the more
accurate theory of bending thin homogenous plates in calculation
of the sandwich nonhomogenous constructions is presented in the work. There
were derived the basic equations for the sandwich plate of symmetrical
structure with thin outer layers, that bend according to REISSNER-MINDLIN
's theory, and middle layer exposed only to transversal shear. The bending
variational equation was derived by varying the possible displacements.
In that the appropriate static boundary conditions were determined on each
end of the plate and the basic equations of bending for the sandwich
plate were confirmed.
PRIMENA STROŽIJE
TEORIJE PRI SAVIJANJU
TROSLOJNE PLOČE
SA LAKIM JEZGROM
U radu je prikazana primena strožije teorije
savijanja tankih homogenih ploča kod proračuna troslojnih nehomogenih konstrukcija.
Izvedene su osnovne jednačine troslojne ploče simetrične strukture sa tankim
spoljašnim slojevima, koji se savijaju prema RESSNER - MINDLIN - ovoj teoriji
i srednjim slojem koji je izložen samo poprečnom smicanju. Metodom energije,
varirajući moguća pomeranja, izvedena je varijaciona jednačina savijanja.
Pri tome su odredjeni odgovarajući statički konturni uslovi i potvrdjene
osnovne jednačine savijanja troslojne ploče
