Experimental determination of the critical force of a compression bar made of linear material does not pose major problems. The widely used Southwell method is also applicable to bars with cross-sections varying in length. The purpose of the research undertaken was to demonstrate that this method can also be successfully applied to bars made of elastic materials exhibiting nonlinear [sigma]([epsilon]) characteristics. ; Using analytical relationships for a rod satisfying the assumptions of Euler-Bernoulli theory, F([delta]) relationships were derived for a rod with an initial arc imperfection, and Southwell diagrams were constructed on this basis. Nonlinear equilibrium paths F([delta]) were also determined numerically using the COSMOS/M program for this purpose. For the pre-assumed different nonlinear characteristics, full confirmation of the validity of the application of the Southwell method for determining the critical force was obtained.
tytuł dodatkowy: Prace z Inżynierii Lądowej i Środowiska
Zielona Góra: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
Civil and Environmental Engineering Reports (CEER), no 34, vol. 4
Biblioteka Uniwersytetu Zielonogórskiego
10 lip 2026
10 lip 2026
2
https://zbc.uz.zgora.pl/publication/108849
| Nazwa wydania | Data |
|---|---|
| Application of the Southwell Method to Determine the Critical Load of Compression Rods Made of Nonlinear Materials | 10 lip 2026 |
Marcinowski, Jakub Sadowski, Mirosław Kuczyński, Tadeusz - red.
Marcinowski, Jakub Sadowski, Mirosław Jurczak, Paweł - red.
Marcinowski, Jakub
Marcinowski, Jakub Kuczyński, Tadeusz - red.
Marcinowski, Jakub Kuczyński, Tadeusz - red.
Marcinowski, Jakub Świtka, Romuald - red.