- #1

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can any one help how to calculate torsional shear stress for square bars

Regards,

venkata prasad.G

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- Thread starter vg18492
- Start date

- #1

- 1

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can any one help how to calculate torsional shear stress for square bars

Regards,

venkata prasad.G

- #2

- 5,441

- 9

Try this pdf

http://www.aerostudents.com/files/mechanicsOfMaterials/shearStressAndShearFlow.pdf

- #3

- 11

- 0

σ=(Ta)/J

a = shortest side

The trick is figuring out what J is. There are a couple methods. The first method which isn't always accurate would be to use this equation.

J=C(1/3)(b)(a^3)

b= longer side

C = .91 if , b<10a

C= 1 of b>10a

There are also tables out there that you can use to help you solve for the stress.

For a quick reference you can also look at this webpage:

http://www.sbainvent.com/strength_of_materials/noncircular-torsion.php

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