Naganarayana, BP and Prathap, Gangan (1988) Consistency aspects of out-of plane bending, torsion and shear in a quadratic curved beam element. Technical Report. National Aeronautical Laboratory, Bangalore,India.
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Abstract
Curved beams in civil engineering applications call for out-of- plane bending and torsion under the action of out-of-plane transverse shear loads. The design of a quadratic displacement type curved beam element capable of representing shear deformation as in the Timoshenko beam theory will call for special attention to be-paid to the manner in which the shear strain is to be represented. Field-inconsistent representations of the out- of- plane transverse shear strain will result in a loss Gf efficiency and introduce spuriou oscillations in the bending moment, torsional moment and shear force. The optimal field-consistent assumed strain interpolation for the shear is derived here and it is demonstrated that it has very high accuracy and is free from spurious force and moment oscillations.
| Item Type: | Proj.Doc/Technical Report (Technical Report) |
|---|---|
| Uncontrolled Keywords: | Finite element method;Field consistency;3-node curved beam element |
| Subjects: | ENGINEERING > Structural Mechanics |
| Division/Department: | Structures Division, Structures Division |
| Depositing User: | M/S ICAST NAL |
| Date Deposited: | 03 Nov 2006 |
| Last Modified: | 24 May 2010 09:52 |
| URI: | http://nal-ir.nal.res.in/id/eprint/3261 |
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