Experimental investigation of mechanical properties of carbon fibre reinforced polymers(CFRP) for structural application

Mechanical engineering

This project presents the results of experimental studies about MS rod confined with high-strength carbon fiber reinforced polymer (CFRP) composites. Four small scale specimens (ID=25mm,OD=28.5mm) were subjected to uniaxial compression up to failure and stress-strain behaviours were recorded. The various parameters such as wrap thickness and fiber orientation were considered. The fiber orientation of 0o , 90o , 45o and combinations of them were investigated. The results demonstrated significant enhancement in the compressive strength, stiffness, and ductility of the CFRP-wrapped MS rod as compared to unconfined MS rod. The carbon fiber reinforced polymers (CFRP) used as an external wrapping is to achieve strengthening and repair of cylindrical structures. The CFRP composites have been used successfully for rehabilitation and strengthening of deficient reinforced cylindrical elements.Reinforced cylinder, need to be laterally confined in order to ensure large deformation under applied loads before failure and to provide an adequate strength.

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