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| The term '''shear flow''' is used in [[solid mechanics]] as well as in [[fluid dynamics]]. Loosely speaking, ''shear flow'' is defined as:
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| * the gradient of a [[shear stress]] force through the body (in solid mechanics);
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| * the flow ''induced'' by such a force gradient (in a fluid).
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| In this article the first definition from solid mechanics is used. See [[Viscosity]] for a fuller treatment about the term from fluid dynamics.
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| ==Dimensions==
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| In [[solid mechanics]], shear flow is given in dimensions of force per length. This corresponds to units of [[newton (unit)|newton]]s per meter in the [[SI]] system and [[pound-force]] per foot in the English Engineering and British Gravitational systems.
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| ==Shear flow in semi-monocoque structures==
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| The equation for shear flow in a particular web section of the cross-section of a [[semi-monocoque]] structure is:
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| :<math> q = \frac{V_y Q_x}{I_x}</math>
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| where
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| :''q'' - the shear flow
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| :''V''<sub>''y''</sub> - the shear force perpendicular to the neutral axis ''x'' through the entire cross-section
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| :''Q''<sub>''x''</sub> - the [[first moment of area]] about the neutral axis ''x'' for a particular web section of the cross-section
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| :''I''<sub>''x''</sub> - the [[second moment of area]] about the neutral axis ''x'' for the entire cross-section
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| ==External links==
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| * [http://www.mathalino.com/reviewer/mechanics-and-strength-of-materials/horizontal-shearing-stress Horizontal shearing stress]
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| * [http://www.mathalino.com/reviewer/mechanics-and-strength-of-materials/shear-flow Shear flow]
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| ==Sources== | |
| *Riley, W. F. F., Sturges, L. D. and Morris, D. H. ''Mechanics of Materials.'' J. Wiley & Sons, New York, 1998 (5th Ed.), 720 pp. ISBN 0-471-58644-7
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| [[Category:Solid mechanics]]
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| [[Category:Fluid dynamics]]
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