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Shear flow



Shear flow is:-

in a solid body, the gradient of a shear stress force through the body;
in a fluid, it is the flow induced by such a force gradient - see Viscosity for a fuller treatment.

Additional recommended knowledge

Dimensions

In solid mechanics, shear flow is given in dimensions of force per length. This corresponds to units of newtons per meter in the SI system and pound-force per foot in the English Engineering and British Gravitational systems.

Shear flow in semi-monocoque structures

The equation for shear flow in a particular web section of the cross-section of a semi-monocoque structure is:

q = \frac{V_y Q_x}{I_x}
  • q - the shear flow through a particular web section of the cross-section
  • Vy - the shear force perpendicular to the neutral axis x through the entire cross-section
  • Qx - the first moment of area about the neutral axis x for a particular web section of the cross-section
  • Ix - the second moment of area about the neutral axis x for the entire cross-section

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
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Shear_flow". A list of authors is available in Wikipedia.
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