MecE_380-W09-Sample I

# MecE_380-W09-Sample I - _1 i 2 CD ~A Ex ®<is = =f(f:2...

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II Strains & Displacements Strain Transformation & Principal Strains Example I In a delta rosette three strain gages are arranged in the orientation shown in the figure. (a) Determine the strains Cx . C;' and Cxy in terms of &'4, cs, and Ce· (,) Determine the principal strains and the principal directions in terms of &'4, c8, and Ce. v 0A = 0" 9/1=12()O OC = 240 0 x

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