1.

For both plane stress as well as plain strain case the equilibrium equation in x-direction is _______

A. \(\frac{∂σ_x}{∂x}+\frac{∂τ_{yx}}{∂y}=0\)
B. \(\frac{∂σ_x}{∂x}+\frac{∂τ_{yx}}{∂y}+\frac{∂τ_{zx}}{∂z}+X=1\)
C. \(\frac{∂σ_x}{∂x}+\frac{∂τ_{yx}}{∂y}+X=0\)
D. \(\frac{∂σ_x}{∂x}+\frac{∂τ_{zx}}{∂z}=0\)
Answer» E.


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