Uniform Tension: the Problem and the Solution

Authors: Eremichev A. Published: 14.09.2017
Published in issue: #5(116)/2017  

DOI: 10.18698/0236-3941-2017-5-22-27

Category: Mechanics | Chapter: Theoretical Mechanics  
Keywords: uniform tension, uniform triaxial tension, finite element method, plexiglas, carbon-carbon composite material, drucker’s postulate , test samples

When we need to plot the failure surface of a material, the "starting point" is of great importance. It is determined by results of uniform compression and uniform tension tests. The former is rather trivial, although greater technical difficulties arise when creating a pressure high enough to make the material fail. Implementing a uniform tension stress state, however, and especially simultaneously measuring the failure stress is a complex scientific and engineering task. We supply a brief review of articles on the subject. We describe the sample and the device for implementing triaxial tension we developed. We provide test results for plexiglas (PMMA) and carbon-carbon composite material samples


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