Torsional Loading Behaviors of Slotted Filament Wound Glass Fiber Reinforced Composite Tubes

Yıl 2018, Cilt: 6 Sayı: 2, 45 - 54, 03.08.2018

İbrahim Fadıl Soykök

https://doi.org/10.21541/apjes.388080

Cited By: 1

Öz

The stress and strain behaviors of filament wound glass-fiber epoxy based cylindrical tube structures made of two different stacking sequences as [(±45°)5] and [(0/ 90)5] were numerically investigated under a constant torque value. The exterior surfaces of tubes were deliberately defected by longitudinally extending, rounded end, 0.6 mm deep, 2 mm wide but varying-length slots. Slot-less and full-length-slot structures were also included in the study. During torsional loading, the variations in stresses, strains and twisting angles of the specified thin-walled composite tube models were investigated, comparatively. Additionally, the effects of fiber winding angles and slot lengths on the specified quantities were parametrically examined. A considerable amount of stress accumulation around the slot tip of both type of tube model is measured which constitute a risk of damage progression. At the innermost laminas, slight fluctuations in the maximum stresses are observed in the slot lengths shorter than 140mm, whereas rapid increases are remarkable for exceeded lengths. On the other hand, the maximum stress changes in the outermost layer are quite uneven. From slot-less to full-length-slot, the change in slot dimensions provokes 8.32 and 9.11 % increments in twisting angles in the 45°/-45° angle-ply and 0°/90° cross-ply structures, respectively. Under the same loading condition, [(±45°)5] stacking sequence gives the structure averagely 0.66° lower total rotation at the specimen tip in comparison to [(0/ 90)5] fiber arrangement.

Anahtar Kelimeler

Filament winding, Glass-fiber epoxy, Composite tubes, Torsion

Kaynakça

• [1] G. Meijer, F. Ellyin, “A failure envelope for ±60_ filament wound glass fibre reinforced epoxy tubulars”, Composites: Part A, vol. 39, pp. 555–564, 2008.
• [2] I. Burda, AJ. Brunner, M. Barbezat, “Mode I fracture testing of pultruded glass fiber reinforced epoxy rods: Test development and influence of precracking method and manufacturing”, Engineering Fracture Mechanics, vol. 149, pp. 287-297, 2015.
• [3] G. Perillo, R. Vacher, F. Grytten, S. Sørbø, V. Delhaye, “Material characterisation and failure envelope evaluation of filament wound GFRP and CFRP composite tubes”, Polymer Testing, vol. 40, pp. 54-62, 2014.
• [4] LAL. Martins, FL. Bastian, TA. Netto, “Structural and functional failure pressure of filament wound composite tubes”, Materials and Design, vol. 36, pp. 779–787, 2012.
• [5] LAL. Martins, FL. Bastian, TA. Netto, “Reviewing some design issues for filament wound composite tubes”, Materials and Design, vol. 55, pp. 242–249, 2014.
• [6] EV. Morozov, “The effect of filament-winding mosaic patterns on the strength of thin-walled composite shells”, Composite Structures, vol. 76, pp. 123–129, 2006.
• [7] F. Hafeez, F. Almaskari, “Experimental investigation of the scaling laws in laterally indented filament wound tubes supported with V shaped cradles”, Composite Structures, vol. 126, pp. 265–284, 2015.
• [8] J. Xing, P. Geng, T. Yang, “Stress and deformation of multiple winding angle hybridfilament-wound thick cylinder under axial loading and internal and external pressure”, Composite Structures, vol. 13, pp. 868–877, 2015.
• [9] P. Mertiny, F. Ellyin, A Hothan, “An experimental investigation on the effect of multi-angle filament winding on the strength of tubular composite structures”, Composites Science and Technology, vol. 64, pp. 1–9, 2004.
• [10] P. Krishnan, MS. AbdulMajid, M. Afendi, AG. Gibson, HFA Marzuki, “Effects of winding angle on the behaviour of glass/epoxy pipes under multiaxial cyclic loading”, Materials and Design, vol. 88, pp. 196–206, 2015.
• [11] HH. Moreno, B. Douchin, F. Collombet, D. Choqueuse, P. Davies, “Influence of winding pattern on the mechanical behavior of filament wound composite cylinders under external pressure”, Composites Science and Technology, vol. 68, pp. 1015–1024, 2008.
• [12] D. Tele, N. Wakhare, R. Bhosale, P. Bharde and S. Nerkar, “A Review on Design and Development of Filament Winding Machine for Composite Materials”, International Journal of Current Engineering and Technology, vol.6, pp. 2347 – 516, 2016.
• [13] ASTM D5448/D5448M-11 Standard Test Method for Inplane Shear Properties of Hoop Wound Polymer Matrix Composite Cylinders.
• [14] ASTM D6507-16 Standard Practice for Fiber Reinforcement Orientation Codes for Composite Materials1