Stress-strain state of rod with heterogeneous structure (Novosibirsk)
https://doi.org/10.31675/1607-1859-2023-25-6-113-124
EDN: WOJCIZ
Abstract
Heterogeneous structures have a number of significant advantages over classical homogeneous. Their stress-strain state control allows to more effectively adapt the system to given thermal conditions and, as a result, additionally save weight and cost of the structure. The practical use of elements with heterogeneous structure, requires the creation of engineering calculation approaches with acceptable labor intensity, accuracy and versatility.
Purpose: The improvement of design methods implying physical relations in problems of thermal power deformation of rods with heterogeneous structure.
Design/methodology: The Timoshenko rod model design involves the approximation of transverse shear functions and membrane analogy of shear deformation in torsion. A threedimensional prismatic rod having a rectangular cross-section, is obtained from quasi-homogeneous parts (phases) made of various structural materials.
Research findings: Theoretical calculations are obtained for thermal power spatial bending with tension, transverse shear and torsion. These equations contain stiffness characteristics of zero, first- and second-order tensile bending, shear and torsional stiffnesses of the section.
Practical implication: These equations can be used to compactly formulate physical relations and the boundary value problem of spatial deformation of rods with heterogeneous structure.
About the Author
A. V. Mishchenko
Novosibirsk State University of Architecture and Civil Engineering; Order of Zhukov Novosibirsk Higher Military Command School
Russian Federation
Russian Federation
Andrey V. Mishchenko, DSc, A/Professor
113, Leningradskaya Str., 630008, Novosibirsk;
49, Ivanov Str., 630117, Novosibirsk
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Review
For citations:
Mishchenko A.V. Stress-strain state of rod with heterogeneous structure (Novosibirsk). Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 2023;25(6):113-124. (In Russ.) https://doi.org/10.31675/1607-1859-2023-25-6-113-124. EDN: WOJCIZ
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