How to calculate fluid shear force

1. For different fluids, the constant is the shear stress τ< br /> μ one × 1/dr1= μ two × 2/dr2= τ
in addition, 1 + 2 = V
can be solved as 1 and 2, which are the velocity differences between the two liquids τ< br /> τ× A is the pulling force

2.

Shear force F (n) = sectional area s (mm 2) x yield strength σ "Shear" is a relative dislocation deformation phenomenon of the cross section of the material under the action of a pair of lateral external forces (that is, the force perpendicular to the action surface) which are very close, the same size and opposite to each other. The force that can make the material proce shear deformation is called shear force or shear force

extended data:

the key to judge whether "shear" or not is whether the cross section of material has relative dislocation. Therefore, cutting vegetables with a kitchen knife is not a shearing phenomenon (because there is no relative dislocation in the cross section of vegetables), while cutting nails with scissors is a shearing phenomenon (relative dislocation in the cross section of nails). Note: using nail clippers to cut nails is not a cutting phenomenon, although it can also cut nails off. It belongs to extrusion deformation

As for the source of "shear force", it is of course caused by pressure. It can also be said that shear force is a special form of pressure

3.

Calculation of shear stress: in practical calculation, it is assumed that the shear stress is uniformly distributed on the shear plane. If a is used to represent the shear plane area, the stress is

V -- the shear force acting along the web plane in the calculation plane

s -- calculate the area moment (static moment) of the section above or below the shear stress to the neutral axis

I -- Section moment of inertia

T -- web thickness

reference source: Network shear stress

reference source: Network shear stress

4. The shear force divided by the cross-sectional area is the stress. There is a difference between stress and stress. The former is the set degree, the latter is the size. The shear force is generally known. The shear force is generally caused by tension or pressure. For example, it is common in bolts or steel plates

5. F = kltj
k: safety factor, l: shear length, t: material thickness, j: material shear strength. K is generally taken as 1.3

6. Don't follow the trend. It's two years since 650 was launched. It's almost the same as the one launched at the end of 2012. Now it's gt750ti

7. The input formula is not in the custom field function

there are shear stresses in the variable drop-down menu.

8. Unknown_Error