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2018, vol. 46, br. 4, str. 489-496
Procena zaostalog napona i karakterizacija štete akustičnom emisijom bušnih termički obrađenih laminata sa staklenim vlaknima
aAnna University, Madras Institute of Technology, Chennai, India
bUniversità degli Studi di Camerino Ascoli Piceno, Italy
cAlma Mater Studiorum University of Bologna, Italy

e-adresaana.pavlovic@unibo.it
Ključne reči: acoustic emission; thermal conditioning; flexural properties; delamination; debonding
Sažetak
Strukturne komponente kompozitnih materijala u vazduhoplovnoj industriji sastavljene su pomoću pričvršćivača, postavljenih postupkom rezanja, kao što je bušenje, na materijalu. U kompozitima ovo se smatra posebno kritičnim, jer se tokom sečenja može olakšati delaminacija zbog mehaničkih naprezanja i povlačenja vlakana /smole, tako da se može uticati na strukturni integritet kompozitnih laminata. Tehnika akustične emisije (AE) koristi se za praćenje režima kvara i mehanizam oštećenja kompozitnih materijala, dok se u pokušaju poboljšanja čvrstoće kompozita primjenjuje termičko kondicioniranje. Ovaj rad istražuje preostale karakteristike laminata ojačanih staklenim vlaknima (GFRP) koji su podvrgnuti različitim metodama termičkog kondicioniranja. Termički obrađeni laminati su pod kontrolom AE podvrgnuti testovima sa tri tačke kako bi upoređivali njihov zaostali napon sa neobrađenim. Rezultati jasno pokazuju da se termička obrada može koristiti kao efikasna metoda za.
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O članku

jezik rada: engleski
vrsta rada: neklasifikovan
DOI: 10.5937/fmet1804489K
objavljen u SCIndeksu: 06.09.2018.
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