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stress intensity

stress intensity

stress intensity

(OP)
Dear all

What is stress intensity formula for three dimensional stress in terms of three principal stress (S1,S2,S3)?


thanks

RE: stress intensity

arash2000;
Your post is confusing. There are various formulas for determining stress intensity factor based on crack type and geometry. Any fracture mechanics handbook lists these formulas.

Regarding principal stresses, I would use the Von Mises equation and determine an equivalent stress to use in the desired formulas above.
 

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