Under plane stress condition in the XYZ Cartesian system, which stress – McqOptions

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1.	Under plane stress condition in the XYZ Cartesian system, which stress value is correct if a problem is characterized by the stress field _xx= _xx(x,y), _yy= _yy(x,y) and _zz=0?
A.	<sub>xy</sub>=0
B.	<sub>yx</sub> 0
C.	<sub>zx</sub> 0
D.	<sub>yz</sub> 0
Answer» C. <sub>zx</sub> 0

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