IR Studies on Thermo-Mechanical Cycling of SESMA Elements

Senthilkumar, P and Sateesh, VL and Satisha, Vishwanath and Dayananda, GN (2012) IR Studies on Thermo-Mechanical Cycling of SESMA Elements. Project Report. CSIR-NAL.

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Abstract

This report presents the establishment of facility to carry out the experimental studies on super elastic shape memory alloy (SESMA) and need for thermography studies on SESMA. In addition this report also contains the preliminary results of tension-tension test for SESMA wires. Three different frequencies have been considered in the study to bring out the effect of strain rate/frequency on the heat dissipation characteristics and plastic strain accumulation during the cycles. The dissipated heat is continuously monitored using IR thermographic camera. The obtained data has been used in calculating the heat production due to latent heat of transformation and validated with the dissipation calculated from the mechanical data (stress-strain) relation. Further it is observed from the results that the plastic strain / residual strain stabilize after few numbers of cycles. In order to understand the fatigue and cyclic behaviour of the SESMA detailed studies are required to be carried out.

Item Type: Monograph (Project Report)
Subjects: ENGINEERING > Mechanical Engineering
Depositing User: Mr Satisha
Date Deposited: 05 Jan 2015 04:55
Last Modified: 05 Jan 2015 04:55
URI: http://nal-ir.nal.res.in/id/eprint/12065

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