Affiliation:
1. Faculty of Mechanical Engineering, University of Maribor, Slovenia
Abstract
The aim of this research was to investigate the influences of different test methods on the transverse and longitudinal deformations of specimens and the introduction of the strip quadratic method for the determination of the Poisson's ratio. The research was conducted in two parts. In the first part strip biaxial and strip quadratic methods were investigated. Based on the test results the longitudinal and transverse deformations under tensile loading were analyzed, which resulted in a proposal for modifying the test method for determining the Poisson's ratio. In the second part the Poisson's ratios for five different fabrics were determined using a strip quadratic method. The analyses of the results showed that this test method influenced the values of longitudinal and transverse deformations for the test specimen and its constituents. The proposed tensile method, which is based on a square-shaped specimen, assures determination of the actual values for transverse deformation during the loading.
Subject
Polymers and Plastics,Chemical Engineering (miscellaneous)
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