Effective strain

  • Thread starter darkelf
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  • #1
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Hi,

I need some help here. I'm an MEng Materials with no full background in engineering. So I'm in a bit over my head.

I'm trying to understand the concept of hydrostatic stresses and effective strain in connection to worn surfaces. I am told I just need to know the equations but then I'm a bit confused.

I'm trying understand how equivalent strain is calculated from the shear angle of the interface θ.

In other words how this equation came about


E (Z) = (square root of 3/3) * tan theta


Can anyone please guide/help me?

Thanks.
 
Last edited:

Answers and Replies

  • #2
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Stress is the ratio of applied force to the perpendicular area and strain is the ratio of. Change in length divided to the original length!! What about the strain of a steel?
 

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