E3S Web Conf.
Volume 164, 2020Topical Problems of Green Architecture, Civil and Environmental Engineering 2019 (TPACEE 2019)
|Number of page(s)||10|
|Section||Energy Efficiency in Building Construction|
|Published online||05 May 2020|
Features of compressed rods calculations with account of initial imperfections and creep effects
1 Don State Technical University, Faculty of Civil Engineering, Gagarin 1 Sq., 344000, Rostov-on-Don, Russia
2 Russian State Tourism and Service University, 99 Glavnaya street, Moscow, 141221, Russia
* Corresponding author: firstname.lastname@example.org
The article presents solutions to the problem of rod buckling, taking into account creep effects. Trigonometric series, the finite difference method in combination with the programming language MATLAB, as well as the finite element method in the ANSYS software package were used in the solutions. The behavior of the rods is researched for two types of relations between strain and stress during creep, with strains in an explicit and implicit form. When solving, the criterion of initial imperfections with their different values is used, as well as the tangential-modular theory. The results obtained for the two creep models are compared. The conclusion is made about the accuracy of the results of calculations in ANSYS with the presence of a combination of geometric and physical nonlinearity for various creep models.
© The Authors, published by EDP Sciences 2020
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