Stručni rad

https://doi.org/10.32762/zr.25.1.12

Experimental Validation of Theoretical Predictions for Buckling of Slender Rods

Leo Škec orcid.org/0000-0002-0074-7169 ; Sveučilište u Rijeci, Građevinski fakultet
Nikola Šuput ; Sveučilište u Rijeci, Građevinski fakultet
Nina Čeh ; Sveučilište u Rijeci, Građevinski fakultet

Sažetak

Expressions for the Euler’s critical load at which buckling of straight slender rods occurs can be derived by solving the differential equation of the elastic curve of the beam under the assumption of small displacements and rotations. As this procedure does not allow one to obtain the elastic curve of the rod after buckling takes place, in this work geometrically nonlinear theory is used for determining equilibrium states in the post-critical phase with the corresponding axial load. In order to verify the theoretical predictions, two experiments of buckling of a slender flexible rod were performed with optical measurements of rod’s displacements. Experiments have shown that the theoretical model can very accurately predict the deformed shape of the rod and the corresponding value of the axial load.

Ključne riječi

buckling; critical load; elastic curve of a beam; post-critical behaviour

Hrčak ID:

288293

URI

https://hrcak.srce.hr/288293

Datum izdavanja:

22.12.2022.

Podaci na drugim jezicima: hrvatski

Posjeta: 690 *