Experimental Research of Materials in Triaxial Tension

Tsvetkov, S. V.; Kulish, G. G.; Smerdov, A. A.; Барышев, А.Н.; Tashchilov, S. V.; Magnitskii, I. V.; Пономарёв, К А

doi:10.18698/0236-3941-2016-5-76-88

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“…The recently published article [6] provides the test results of samples [5] from polymethyl methacrylate with sample sizes coinciding with the sizes of our articles. The main conclusions of this article coincide with the content of our publications.…”

Section: IImentioning

confidence: 89%

Uniform Tension: the Problem and the Solution

Ерёмичев¹

2017

HoBMSTU.SME

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KeywordsWhen 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 To determine the surface of strength [1], of great importance is the "starting point" which is determined by the results of tests on a uniform all-round compression and a all-round uniform tension. The first definition is rather trivial, although associated with greater technical difficulties when creating the higher pressure at which the material collapses under compression. The creation of the stress state "all-round uniform tension" and especially the measurement of breaking stress at the same time, is a complex engineering task.One of the greatest scientists and educators in the field of strength of materials Feodos'ev V.I. in the book [2] wrote:"The only one method of the all-round homogeneous tension known at present time is the following: "The previously cooled solid homogeneous ball is quickly heated. The stress state indicated above will occur in the ball center. Unfortunately this method is not suitable for investigation of material properties under this state stress, for example for determining the so-called rupture characteristic". This method was used by modern scholars [3]. Obviously are the difficulties to define specific values of the limit of the all-round tensile strength. Strength at all-round uniform tension in [3] is determined indirectly by finite element method (FEM).Lately many works have been written which address the issues associated with the testing of materials under three axial tension. A review of these works is beyond the scope of this article. However, a large number of such works testify the importance of studying the properties of materials with uniform three-axis tensile.

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Section: IImentioning

confidence: 89%

Uniform Tension: the Problem and the Solution

Ерёмичев¹

2017

HoBMSTU.SME

View full text Add to dashboard Cite

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Experimental Research of Materials in Triaxial Tension

Cited by 1 publication

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Uniform Tension: the Problem and the Solution

Uniform Tension: the Problem and the Solution

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