Temperature impact on the elasticity modulus of structural materials

DOI: 10.34759/trd-2020-115-02

Аuthors

Dobryshkin A. Y.^*, Sysoev O. E.^**, Sysoev E. O.^**

Komsomolsk-na-Amure State University, 27, Lenina str., Komsomolsk-on-Amur, 681013, Russia

*e-mail: wwwartem21@mail.ru
**e-mail: fks@knastu.ru

Abstract

Elasticity modulus of a material, to be more exact Young’s modulus, significantly affects the figures while any operation of the material. Thus, the attention to this indicator long since cases interest. It should be noted that a significant u of research has been conducted in this area. There are indicators of the Young’s modulus of all structural materials, as well as its indicators at various operating conditions, including those at various temperatures, e.g. above and below zero Centigrade. The presented study was conducted with the purpose of solving the problem of buildings and structures strength and stability under the temperature effect. To do this, the review of the well-known data in the Young’s modulus area was performed, and revealing the most advantageous materials for implementation with the purpose of buildings and structures strength enhancing.

Not a single branch of human activities can do without employing the elements in the form of closed and open thin-walled cylindrical shells. These are, for example: hangars, pipelines, missiles, submarines, boats, aircraft and other elements. There are quite a few elements in the form of open and closed shells in the form of machine parts and mechanisms. This form of structures has become widespread due to their higher efficiency compared to the others such as, rectangular structures and parts, since less material is spent on their manufacturing. Besides, it is is easier to manufacture such elements, for example, by rolling. Often these parts, such as aircraft engine nozzles, or aircraft skin, are affected thermally. This phenomenon creates many difficulties, since the exposure temperatures are often above 1000°C. The Young’s modulus herewith is being significantly reduced, the same relates to the strength as well.

Keywords:

Young's modulus, structural materials, composite materials, reinforced concrete

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