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ANALIZA PLOA U PRAVOKUTNIM KOORDINATAMA Diferencijalna jednadba ploe u pravokutnim koordinatama Ogranienja ploe su tanke min/ 1/ hl 20 s , progibi su malimax/ 1/ w h 5 s , Tanka ploa s pravokutnim koordinatnim sustavom Pretpostavke o deformiranju i raspodjeli naprezanja normale na srednju ravninu u toku deformiranja ostaju ravne i okomite na elastinu plohu,( , ) w w xy =elastinaplohaujednojeineutralnaplohaukojojje0xo = i 0yo = , uploivladadvoosnonaprezanje,tj.0xo = ,0yo = i ,z x yo o o
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