Abstract
In this paper, we utilize the Finite Element (FE) method to model twisting of long thin rods and capture the bifurcation scenarios leading to heli-cal buckling and various further post-buckling states. Since standard nonlinear beam elements do not account for nonlinearity in torsional mode, we derive a modified beam element, which allows to model complex torsional buckling bifurcation scenarios of a thin rod subjected to twisting load. A series of verification tests (static analysis with load stepping) of the developed code are per-formed to determine critical torsional buckling loads for various helical buck-ling modes and compared with ABAQUS FE simulation.
Original language | English |
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Article number | 02010 |
Pages (from-to) | 1-6 |
Number of pages | 6 |
Journal | MATEC Web of Conferences |
Volume | 211 |
DOIs | |
Publication status | Published - 10 Oct 2018 |
Event | 14th International Conference on Vibration Engineering and Technology of Machinery, VETOMAC 2018 - Lisbon, Portugal Duration: 10 Sep 2018 → 13 Sep 2018 |