Question: Question 5 : A plane stress element has x = 2 0 kpsi, y = - 1 0 kpsi, and xy = 8 kpsi cw

Question

5

: A plane stress element has x

= 20

kpsi, y

= - 10

kpsi, and xy

= 8

kpsi cw

.

Using Mohr

s circle, find the principal stresses and directions, and show these on a stress element correctly aligned with respect to the xy coordinates. Draw another stress element to show

1,

find the corresponding normal stresses, and label the drawing completely.

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