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FME Transactions
2013, vol. 41, br. 4, str. 325-332
jezik rada: engleski
vrsta rada: neklasifikovan

Kompozitni materijali sa slučajnim rasporedom vlakana kao materijali za popravku oštećenih saćastih jezgara
aUniverzitet u Beogradu, Mašinski fakultet
bMilitary Academy, Belgrade
cAirbus operations S.A.S Saint Martin, M30 ESBESLT, Toulouse, France

e-adresa: mdinulovic@mas.bg.ac.rs

Sažetak

Povećana upotreba kompozitnih materijala donela potrebu za razvojem pouzdanih i efikasnih tehnika popravki. Kao i sve druge noseće metalne strukture i kompozitne strukture sklone su oštećenjima. Razvijene tehnike popravki metalnih konstrukcije nisu direktno primenljive na kompozite i problem popravki kompozitnih struktura mora biti detaljno proučen. U ovom radu analizirana je primena kompozitnih materijala sa slučajnim rasporedom vlakana, kao materijalom za popravku oštećenih saćastih jezgara visoke gustine sendvič konstrukcija. Pomoću Panove teorije izveden je izraz potrebnog zapreminskog udela vlakana materijala popravke i određeno je kompletno naponsko deformaciono stanje popravljene kompozitne stukture metodom konačnih elemenata. Zaključeno je da kompozitni materijali sa slučajnim rasporedom vlakana predstavljaju veoma dobre kandidate za popravku oštećenih kompozitnih struktura sa saćastim jezgrima.

Ključne reči

honeycomb core; composite repair; 3D random fiber composites

Reference

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