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Reply by JJohnston

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Posted on Strain or Tension?

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JJohnston

1622 posts in 3044 days


#1 posted 08-18-2012 12:48 AM

I’m not sure what you mean. The blade manufacturer has (probably) an allowable tensile stress on the blade material. That and the cross sectional area determine the allowable tension. The strain is what it is; in this application, it doesn’t seem to me to be important to know it.

I can tell you, for example, where it would be important to. I’m a bridge engineer, and sometimes, we want to know the actual stress on a member in service, so we put strain gauges on it. We measure the strain, and using these relationships between force, area, stress and strain, we can calculate the actual stress on it.

-- "A man may conduct himself well in both adversity and good fortune, but if you want to test his character, give him power." - Abraham Lincoln


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