Hoop tensile strength behaviour between different thicknesses E-glass and S-glass FRP rings

Sujith Bobba; Z. Leman; E.S. Zainudin; S.M. Sapuan; Sujith Bobba; Z. Leman; E.S. Zainudin; S.M. Sapuan

doi:10.3934/matersci.2019.3.315

AIMS Materials Science

2019, Volume 6, Issue 3: 315-327. doi: 10.3934/matersci.2019.3.315

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Hoop tensile strength behaviour between different thicknesses E-glass and S-glass FRP rings

1.
Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Malaysia
2.
Advanced Engineering Materials and Composites Research Centre, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Malaysia

Received: 30 January 2019 Accepted: 13 March 2019 Published: 24 April 2019

This paper reports the split disk test (as in ASTM D 2290) modified to characterize the stress–strain behaviour of two different GFRP rings using a simple specimen preparation methodology. To compare the split disk ultimate strains, GFRP confined glass fiber rings made of different thicknesses, i.e., 1.75 mm, 2.50 mm and 3.25 mm were tested under uni-axial tensile tests after being wrapped with E-glass and S-glass GFRP fabrics. The results obtained from the modified split-disk tests on E-glass composites were compared with the results obtained from S-glass composites. In addition, the split-disk tests of selected composite specimens were simulated using a finite element method. Strain efficiency factors were then determined for design applications which are in good agreement with the experimental data.
- E-glass fiber,
- S-glass fiber,
- FRP,
- split disk test,
- strain efficiency
Citation: Sujith Bobba, Z. Leman, E.S. Zainudin, S.M. Sapuan. Hoop tensile strength behaviour between different thicknesses E-glass and S-glass FRP rings[J]. AIMS Materials Science, 2019, 6(3): 315-327. doi: 10.3934/matersci.2019.3.315

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Abstract

This paper reports the split disk test (as in ASTM D 2290) modified to characterize the stress–strain behaviour of two different GFRP rings using a simple specimen preparation methodology. To compare the split disk ultimate strains, GFRP confined glass fiber rings made of different thicknesses, i.e., 1.75 mm, 2.50 mm and 3.25 mm were tested under uni-axial tensile tests after being wrapped with E-glass and S-glass GFRP fabrics. The results obtained from the modified split-disk tests on E-glass composites were compared with the results obtained from S-glass composites. In addition, the split-disk tests of selected composite specimens were simulated using a finite element method. Strain efficiency factors were then determined for design applications which are in good agreement with the experimental data.

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