Problem $3$

Select the correct option and briefly explain your choice.

How many independent non$-$zero components can a general $3$D state of stress have? Note that for

the shear components we have ${}_{xy}={}_{yx},{}_{zx}={}_{xz},$ and ${}_{yz}={}_{zy}.$

$($a$)5$

$($b$)6$

$($c$)7$

$($d$)8$

Brief explanation:

How many independent non$-$zero components can a plane$-$stress state of stress have?

$($a$)3$

$($b$)4$

$($c$)5$

$($d$)6$

Brief explanation:

A bending moment $(M_y)$ applied at the free end of a beam will generate transverse shear stress and

bending stress at the fixed end of the beam.

$($a$)$ True

$($b$)$ False

Brief explanation: