Longitudinal Elastic Modulus and Poisson’s Ratio Computations with Automatic Experimental Data Processing of the Materials

Abstract

A MEPR Calculator program is described that provides automatic computations of the longitudinal elastic modulus and Poisson’s ratio of structural materials in accordance with operating test standards. The deformation diagram of the material with a clear-cut linear section is examined. The program permits of valuating the agreement between calculated and experimental data with the coefficients of determination r2 and variation V in elastic modulus and Poisson’s ratio computations. The program features the on-line display and visualization of the calculated parameters in establishing the limits of the linear section of the deformation diagram, which makes longitudinal elastic modulus and Poisson’s ratio computations much easier and faster on condition of the best data agreement.