TENSILE TEST ANALYSIS USING REVERSING DC ELECTRICAL POTENTIAL METHOD

摘要: Stress versus electrical potential behaviour during tensile testing has been analyzed using the reversing dc method. It is shown that stress curve obtained not only indicates shape changes in specimen but also includes effect of internal damage occurring loading process. The experiments were performed at 26oC a rate 10 -3 s -1 . elastic limit was found to be 0.2 % strain while plastic around 3.8 strain, as from stress-strain curve. same results are observed that, up 12% resistivity remains almost constant after this value, it increases polynomial manner. concluded due dimensional and taking place both changes. Optimisation current density carried out an optimum value 5.0 Amperes for having 3.175 mm gauge section diameter obtained.