- citations in SCIndeks: [4]
- citations in CrossRef:0
- citations in Google Scholar:[
 ]
- visits in previous 30 days:5
- full-text downloads in 30 days:0
|
|
|
2013, vol. 63, iss. 1, pp. 63-69
|
|
Thin wall and thick wall filament wound polymeric composite tubes: Mechanical characteristics caused by internal hydraulic pressure
Tankozidne i debelozidne mokronamotane polimerne kompozitne cevi - mehaničke karakteristike izazvane unutrašnjim hidrauličkim pritiskom
Military Technical Institute - MTI, Belgrade
Abstract
Two groups of so-called "thin wall" test tubes (wall thickness less than 2 mm) and two groups of so-called "thick wall" test tubes (wall thickness more than 2 mm) of the same internal diameter were produced by the filament winding technology using glass roving and a polyester resin system. The mentioned test tubes were exposed to the influence of internal hydraulic pressure and their mechanical characteristics were investigated. The radial deformations of four groups of filament wound test tubes were measured by strain gauges and internal hydraulic pressure was recorded by a piezoelectric pressure converter. The elastic characteristics i.e. elastic deformations and hydraulic pressures at the elastic limit were determined. The testing processes were ended by determining the final properties i.e. radial deformations and hydraulic pressure at the moment of burst of two groups of "thin wall" and two groups of "thick wall" test tubes.
Sažetak
Dve grupe tzv. "tankozidnih" ispitnih cevi (debljine zida manje od 2 mm) i dve grupe tzv. "debelozidnih" ispitnih cevi (debljine zida veće od 2 mm) istog unutrašnjeg prečnika su urađene tehnologijom mokrog namotavanja staklenog vlakna impregnisanog sistemom poliestarske smole. Pomenute ispitne cevi su bile izložene dejstvu unutrašnjeg hidrauličkog pritiska i određene su mehaničke karakteristike. Radijalne deformacije četiri grupe namotanih ispitnih cevi su izmerene pomoću mernih traka, a unutrašnji hidraulički pritisak je zabeležen pomoću piezoelektričnog pretvarača pritiska. Određene su elastične karakteristike tj. radijalne deformacije i hidraulički pritisak na granici elastičnosti. Procesi ispitivanja su završeni određivanjem radijalnih deformacija i hidrauličkog pritiska u momentu prskanja dve grupe tankozidnih i dve grupe debelozidnih ispitnih cevi.
|
|
|
|
References
|
|
10 
|
Ashby, M.F. (1999) Materials selection in mechanical design. Oxford: Butterworth Heinemann
|
|
6
|
Kelly, A. (1989) CONCISE encyclopedia of composite materials. Oxford: Pergamon Press
|
|
|
Radulović, J. (2012) Elastic characteristics of hydraulically stressed filament wound composite polymeric tubes. in: Defensive Technologies, Belgrade, OTEH 2012, 5th International Scientific Conference, Proceedings, 610-613
|
|
6 
|
Radulović, J. (2008) Karakterizacija mokronamotanih polimernih kompozitnih materijala. Scientific Technical Review, vol. 58, br. 1, str. 66-75
|
|
2
|
Radulović, J. (2010) Uticaj cikličnog unutrašnjeg pritiska na kvalitet mokronamotanih kompozitnih cevi. Scientific Technical Review, vol. 60, br. 1, str. 54-60
|
|
|
|
|