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This write-up repeats the things been taught in the class. Shear flow $f = \tau t$ = constant For thin wall closed shapes: $f = \tau t = \dfrac {T}{2A_m}$ and $\tau = \dfrac {T}{2tA_m}$ In the formulas, $t$ is the wall thickness, $A_m$ is the area bounded by the centerline of the shape. For example, for a round pipe, $A_m = \pi r^2$, and a hollow rectangle, ...


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Shear flow is a quantity which is used to conveniently solve (usually) torsional problems of thin walled beams (it has other applications also). The concept behind it is, that the stress distribution in a wall of a thin-walled beam can be considered constant (while in a circular cross section is proportional to the distance from the shear center. The ...


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Shear strain is defined as the angular deformation caused due to parallel or shearing force. In structural engineering, there are two cases of shear strains that are of particular concern. The occurrence of each depends on the loading that causes shear deformation as indicated below. 1) Shear Strain due to Pure Shear 2) Shear Strain due to Shear Deformation ...


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