Finite Element Modeling of Disk Specimen for Indirect Material Testing under Axially Symmetric Three-Dimensional Stress State
https://doi.org/10.31675/1607-1859-2026-28-3-290-302
EDN: TNQLQP
Abstract
Relevance: Direct testing of materials under a three-dimensional stress, which creates a uniform stress state throughout the entire control area of the sample, requires complex technical solutions. The development and advancement of simpler indirect tests, in which the uniform triaxial stress state is created only in a pre-determined part of a disk specimen where failure occurs, and controlled parameter values are calculated. A disk is used for indirect strength testing under a three-dimensional axisymmetric stress.
Purpose: The aim is to determine applicability limits of the engineering theory of thin plate bending, taking into account shear and compression, as well as stress errors and displacements of the specimen control point.
Methodology/approach: The comparative analysis of the analytical solution to the engineering theory of thin plate bending, taking into account shear and compression, with the FEM results implemented in the Inzh-RU computer complex.
Research findings: The obtained results allow evaluating the effect of the relative disk height for various aspect ratios. It is shown that the limiting h / d ratio for isotropic material should not be over 1/5.
About the Authors
G. N. Shirunov
Military Engineering Institute of the Military Logistics Academy
Russian Federation
Russian Federation
Guriy N. Shirunov, DSc
8, Makarov Emb., 199034, Saint-Petersburg
D. A. Sarvilin
OOO TEKTON-SPb
Russian Federation
Russian Federation
Denis A. Sarvilin, Chief Officer
62-64A, Dekabristov Str., 190121, St. Petersburg
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For citations:
Shirunov G.N., Sarvilin D.A. Finite Element Modeling of Disk Specimen for Indirect Material Testing under Axially Symmetric Three-Dimensional Stress State. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 2026;28(3):290-302. (In Russ.) https://doi.org/10.31675/1607-1859-2026-28-3-290-302. EDN: TNQLQP
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