Question

blem 2. (35%) For the following problem THE DATA-value "a" comes from (ONLY) the LAST digit of your Eagle ID

(write it here) a=

(in kPa), and if final digit is "0" use "10")

You must IN THIS ORDER DO (AND EACH OF THESE RESULTS MUST BE CLEARLY LABELED AND BE READABLE,

YOU CANNOT SKIP STEPS, disorganized work will NOT be graded):

Given the state of plane stress of the figure, with above data (READ ABOVE):

WRITE below your data and CORRECT signs for each stress as per conventions:

(1.5) 2 KP

1

(2.5) K

(1.2)a ka

Write

data here:

your

(apply sign (+) or (-)

that corresponds):

=(2.5)a KP3

a

Tỷ 15 lá khá

Txy

(L2)a KP-

=

(2) Compute Maximum- and Minimum-normal-stresses (aka, principal stresses), and the angle for such values

(3) GRAPHICALLY represent the correctly oriented (rotated) element and stress values from above (2)

(4) Compute Maximum-in-plane-shear-stress, and the element-orientation (angle) for such values

(5) THEN ANSWER the following (the answer must be "yes" or "no", write answer in block at bottom): is the shear

stress computed in (4) the largest one for any possible SPACE orientation?

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