Naslov
Approximate solution of stress distribution in the beam loaded on bending in the steady-state creep conditions

Autori
Pustaić, Dragan

Izvornik
Journal of Modern Civil Engineering (2470-4180) 1 (2022), 3; 19-24

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
non-linear and linear stress distribution ; beam loaded on bending ; steady-state creep ; variation method ; principle of minimum complementary potential energy.

Sažetak
The straight prismatic beam loaded on bending is considered at the paper. The beam is uniformly heated and it is situated in the state of steady- state creep. If the bending moment, acts on the beam, the normal stresses, appear which will be constant over the time. Those stresses are non- linearly distributed across the cross-section of the beam, what was investigated and published in the earlier papers. In this paper, the stresses are analyzed by means of one variation method - the principle of the minimum of complementary potential energy accumulated in the beam. The solutions, obtained by that method will be approximate but enough accurate, and give the linear distribution of the normal stresses, across the cross-section of the beam. They are reliable and good approximation of the exact analytical solution.

Izvorni jezik
Engleski

Znanstvena područja
Brodogradnja, Strojarstvo, Zrakoplovstvo, raketna i svemirska tehnika

POVEZANOST RADA