lecture_4__more_stress_examples_

lecture_4__more_stress_examples_ - • z I2-Cf eece T-t...

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Given the square cross-section post, calculate the principal stresses and maximum shear stress at points A and B. I+-- 9 in- / ./ V// V I./ B 3200lb .11 Cross-section at Ground 62 i n 800 I / 52 i n l 'Z =0
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PR \t-JC\ 'fAL S -re~S '-' Q 'cZ-- :: aX. + cs ~ 2. -t J/C5 x- 0 1)" + T .. - ~ z. )<..i' { CJ, = 29 '3 3r L ps~ ( L ) 02. ::: 0 (;~ :::: 1'I"h P; k' ~-o ('6-=-0) :c- ~ = (3UlO [b)(q,,,,) ( 31"') J = I Z .s . ~ pc;:.. (c) J- (~ (e \~ )("h'~) ~ - h (7 1 t-J )( ~(~)
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@Y 1; z: \J G. ::. (Bee:. \ b J(' Ii.
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