Calculating Principle Strains

[mailrocky78]

Hi.

I have been trying to track down a reference describing the calculation of maximum, mimimum, and medium principle strain in 3D. If anyone has the formulas and/or a reference, could you please let me know? Thanks.

 

[UcfSE]

"Advanced Mechanics of Materials" 6e. Boresi, Arthur P. and Richard J. Schidmt. John Wiley and Sons, Inc. New York: 2003.

"Elasticity in Engineering Mechanics" 2e. Boresi, Arthur P. and Ken P. Chong. John Wiley and Sons, Inc. New York: 2000.