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DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

AXIS-SYMMETRIC THERMOELASTIC DEFORMATION OF A CYLINDER WITH ACCOUNT FOR THE TWO-DIMENSIONAL HETEROGENEITY OF THE MATERIAL EXPOSED TO HEAT AND RADIATION LOADS

Vestnik MGSU 11/2012
  • Litvinov Stepan Victorovich - Rostov State University of Civil Engineering (RGSU) Candidate of Technical Sciences, Associate Professor, Department of Strength of Materials, +7 (863) 201-91-49, Rostov State University of Civil Engineering (RGSU), 162 Sotsialisticheskaya st., Rostov-on-Don, 344022, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Kozelskiy Yuriy Fedorovich - Rostov State University of Civil Engineering (RGSU) postgraduate student, Department of Strength of Materials, Director, Department of Operation of Technical Training Aids and Telecommunications, +7 (863) 201-90-84, Rostov State University of Civil Engineering (RGSU), 162 Sotsialisticheskaya st., Rostov-on-Don, 344022, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Yazyev Batyr Meretovich - Rostov State University of Civil Engineering (RSUCE) Doctor of Technical Sciences, Professor, Chair, Depart- ment of Strength of Materials; +7 (863) 201-91-09, Rostov State University of Civil Engineering (RSUCE), 162 Sotsialisticheskaya St., Rostov-on-Don, 344022, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 82 - 87

The objective of the research is to analyze the stresses experienced by radiation and heat
screens similar to those installed at nuclear power plants. This type of design, also known as "the
dry protection" is designated to reduce the effects of radiation and heat emitted by the reactor.
The authors have considered the axis-symmetric problem resolved through the employment
of the variational difference method. The solution to the problem is composed of several steps. The
first step represents the distribution of the temperature field over the thickness of the screen. The
second step represents the distribution of the neutron flux in the thick screen. The third stage represents
the change in the Young's modulus due to thermal and radiation effects. The fourth stage is
the immediate determination of stresses in the thick screen.
The authors have proven that the combined effect of radiation and thermal stresses produced
on the Young's modulus causes substantial voltage change in the thickness of the cylinder, whereas
the solution that assumes a constant value of the Young's modulus is less accurate. The aforementioned
phenomenon suggests that no changes in physical and mechanical properties of materials
can be neglected, whenever structures exposed to several supplementary (temperature, radiation
exposure, etc.) loads are analyzed.

DOI: 10.22227/1997-0935.2012.11.82 - 87

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