Integral Method for Structural Analysis of Beams with Bending-Torsion Coupling
Journal Title: INCAS BULLETIN - Year 2018, Vol 10, Issue 3
Abstract
This paper deals with structural static or stability analysis of straight beams, when the bending-torsion coupling is considered. A practical case is the lateral buckling analysis of high cross-section beams which involves the coupled bending deflection and twist. Simple rectangular cross-section or thin walled open profile symmetric cross-section beams can buckle laterally when they are subjected to bending with respect to the stiffer plane. Bending-torsion coupling occurs also for some composite beams. The presented approximate integral method uses flexibility influence functions (Green functions) and a matrix formulation, leading to an eigenvalue problem in the case of stability analysis. The formulation can be also used for static or dynamic analysis. Some numerical examples are presented in comparison with the results of other methods.
Authors and Affiliations
Viorel ANGHEL
Keywords
Related Articles
- EP ID EP386966
- DOI 10.13111/2066-8201.2018.10.3.3
- Views 87
- Downloads 0
Missile Grid Fins Analysis using Computational Fluid Dynamics: A Systematic Review
Grid Fins are unconventional control surfaces, consisting of cells in an outer frame. Uniqueness of Grid Fins is that they are aligned parallel to the direction of air flow. The orientation of these fins results in aerod...
Determination of flow front velocity and optimal injection pressures for better impregnation of E-glass with polyester in resin transfer mold
Flow front velocity of resin plays a key role in yielding better impregnation of fiber reinforcement in resin transfer molding to fabricate quality composites. A video camera was used to capture the patterns of resin flo...
Investigation of low emission combustors using hydrogen lean direct injection
One of the key technology challenges for the use of hydrogen in gas turbine engines is the performance of the combustion system, in particular the fuel injectors. Tests were conducted to measure the nitrogen oxide (NOx)...
Turboprop Engine Nacelle Optimization for Flight Increased Safety and Pollution Reduction
Commuter airplanes defined in CS-23 as being propeller driven, twin-engine, nineteen seats and maximum certified take-off weight of 8618 Kg had lately a special development due to advantages of turboprop engine compared...
Numerical Investigations of Dynamic Stall Control
In this paper we investigated numerically the dynamic stall phenomenon and the possibilities to control it, with application to vertical axis wind turbines (for urban users). The Phenomenon appear at low tip speed ratio...