Torsion: Difference between revisions
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(Based on Glossary of Bridge Terminology; Chapter LXXX of J.A.L. Waddell's Bridge Engineering (New York: Wiley, 1916)) |
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The [[twist]] or [[deformation]] of a body set up by a [[torque]]. | The [[twist]] or [[deformation]] of a body set up by a [[torque]]. | ||
== Torsion Theories == | |||
* [[Saint Venant torsion theory]] - basic torsion theory for which [[warping]] is not restrained | |||
* [[Vlasov torsion theory]] - more general torsion theory for which warping can be restrained | |||
== Notation == | |||
The following notation is used throughout the torsion topic, unless noted otherwise: | |||
* <math>B</math> ... [[bimoment]] | |||
* <math>I_{\omega}</math> ... [[sectorial moment of inertia]] | |||
* <math>\phi</math> ... angle of rotation due to torsional moment | |||
* <math>\phi'</math> ... first derivative of <math>\phi</math> with respect to the local X axis of the member | |||
* <math>\phi''</math> ... second derivative of <math>\phi</math> with respect to the local X axis of the member | |||
* <math>\phi'''</math> ... third derivative of <math>\phi</math> with respect to the local X axis of the member | |||
== See Also == | |||
* [[shear flow]] | |||
== References == | |||
* AISC Design Guide 9: Torsional Analysis of Structural Steel Members (1996) | |||
* Michael R. Lindeburg: Civil Engineering Reference Manual for the PE Exam, 9th Edition, 2003, p. 45-14 (eq. 45.54) | |||
{{Torsion}} | |||
[[Category:Glossary]] | [[Category:Glossary]] | ||
[[Category:Torsion]] | |||
Latest revision as of 03:07, 22 October 2024
The twist or deformation of a body set up by a torque.
Torsion Theories
- Saint Venant torsion theory - basic torsion theory for which warping is not restrained
- Vlasov torsion theory - more general torsion theory for which warping can be restrained
Notation
The following notation is used throughout the torsion topic, unless noted otherwise:
- ... bimoment
- ... sectorial moment of inertia
- ... angle of rotation due to torsional moment
- ... first derivative of with respect to the local X axis of the member
- ... second derivative of with respect to the local X axis of the member
- ... third derivative of with respect to the local X axis of the member
See Also
References
- AISC Design Guide 9: Torsional Analysis of Structural Steel Members (1996)
- Michael R. Lindeburg: Civil Engineering Reference Manual for the PE Exam, 9th Edition, 2003, p. 45-14 (eq. 45.54)
| Home > Topics > Traditional Analysis Methods > Torsion e | |
| Overview | Torsion · Saint Venant torsion theory · Vlasov torsion theory · Torsion formulas |
| Topics | Warping · Bimoment |