Comparison of the Analytical and the Numerical Computations of the Slender Plates Subjected to the Interaction of In-plane and Out-of-plane Forces
| Autor: | Lidija Gros, Dragan Ribarić |
|---|---|
| Jazyk: | chorvatština |
| Rok vydání: | 2017 |
| Předmět: |
stability of flat plates
large deformation theory finite element method linked interpolation FEAP program numerical iteration lcsh:TA1-2040 stabilnost ravnih ploča teorija 2. reda metoda konačnih elemenata vezana interpolacija program FEAP numerička iteracija lcsh:Engineering (General). Civil engineering (General) |
| Zdroj: | Zbornik radova (Građevinski fakultet Sveučilišta u Rijeci) Volume XIX Issue 1 Zbornik Radova, Vol 19, Iss 1 (2019) |
| ISSN: | 0350-8552 2584-6159 |
| Popis: | U ovom radu prikazan je proračunski model geometrijske nelinearnosti ravnih tankih plošnih konstrukcija izvan svoje ravnine, a za istovremena djelovanja u ravnini i okomito na nju. Najprije je opisana teorijska osnova proračunskog modela (teorija 2. reda) izvedena iz ravnotežnih, konstitutivnih i kinematičkih jednadžbi, a potom je prikazan numerički postupak za opće rješenje problema. Numerički postupak koristi metodu konačnih elemenata i slobodni software FEAP (Finite Element Analysis Program, Univesity of California at Berkeley), u koji je nadograđen vlastiti kod i koji numeričkom iteracijom omogućava rješavanje različitih ravninskih primjera stabilnosti ploča prikazanih o ovom radu. In this work the numerical model for the out-of-plane geometrical nonlinearity of thin plane structures, subjected to the in-plane and the out-of-plane actions, is presented. First the large deformation theory was developed from the equilibrium, constitutive and kinematic problem conditions and then the numerical procedure for the general solution of the model was described. The procedure uses the finite element method implemented in the free software FEAP (Finite Element Analysis Program, University of California at Berkeley), in which our own code was incorporated using an iterative numerical procedure for solving problems of stability for generally-loaded flat thin plates. Some numerical examples are presented in this work. |
| Databáze: | OpenAIRE |
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