ASTM E132-17 pdf free download.Standard Test Method for Poisson’s Ratio at Room Temperature.The size of this pdf file is 874K.
ASTM E132-17 covers the determination of Poisson’s ratio from tension tests of structural materials at room temperature. This test method is limited to specimens of rectangular section and to materials in which and stresses at which creep is negligible compared to the strain produced immediately upon loading.
Referenced Documents
ASTM E4 Practices for Force Verification of Testing Machines;
ASTM E6 Terminology Relating to Methods of Mechanical Testing;
ASTM E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods;
Evaluation of Data
Plot the average longitudinal strain, εl, indicated by the longitudinal extensometers and the average transverse strain, εt, indicated by the transverse extensometers, against the applied force, P, as shown in Fig. 2. Determine the slopes, dεl/dP, and dεt/dP, of these lines. Calculate Poisson’s ratio using Eq 2.
Precision and Bias
Elastic properties such as Poisson’s ratio, shear modulus and Young’s modulus are not determined routinely and are generally not specified in materials specifications. Precision and bias statements for this test method are therefore not available.
Keywords:axial strain; longitudinal strain; Poisson’s ratio; stress-strain diagram; transverse strain