Numerical Modeling of Square Steel Members Wrapped by CFRP Composites
S. Sivasankar1 and A. Praveen Kumar2
1Dr. S. Sivasankar, Associate Professor, Department of Civil Engineering, CMR Technical Campus, Hyderabad, Telangana, India.
2Dr. A. Praveen Kumar, Associate Professor, Department of Mechanical Engineering, CMR Technical Campus, Hyderabad, Telangana, India.
Manuscript received on 21 August 2019 | Revised Manuscript received on 26 August 2019 | Manuscript published on 30 August 2019 | PP: 3082-3087 | Volume-8 Issue-10, August 2019 | Retrieval Number: J96210881019/2019©BEIESP | DOI: 10.35940/ijitee.J9621.0881019
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: HSS (Hollow Structural Steel) tubular members used in buildings and bridges for structural application is rapidly developing technique in the recent era. Since, they have many advantages over RC structural members. This paper presents the application of CFRP on HSS tubular members under axial compression. Typical failure occurred during axial loading was local buckling, and this could be reduced by wrapping CFRP sheets around the HSS tubular columns were investigated experimentally. Eight steel samples are used in this test. Among eight specimens, two are unwrapped and the remaining six columns are externally wrapped by CFRP. CFRP sheets are used as strips, and the width of the sheets are constant. The spacing between the CFRP sheets is also constant. All columns are tested in column tester till the maximum to understand their failure modes, Ultimate load, load Vs. Displacement, Stress- Strain behaviour and Ductility index. Finally, results obtained from the experimental investigation could be validated with ANSYS software. The ultimate load and displacements from ANSYS validation are closely match with test results.
Keywords: Axial Compression, Wrapping, CFRP Sheets, Buckling, HSS Columns, Short Columns, Strips and ANSYS.
Scope of the Article: Numerical Modelling of Structures