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Question: l a sketch the three mohrs circles for a stress...

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l. (a) Sketch the three Mohrs Circles for a stress state with σι--2a,Ơll_:a, (b) For the stress state of (a), with coordinate axes in the principal directions, determine direction cosines of the normal to a surface on which σπ_a, Th 3a/4. (c) Determine the equation of the locus of all (cn, Tn) points for surfaces suc!h that n 3/8: sketch the locus, and determine the maximum σ on it. Ans. : (b) nǐ = 9/32, n-14/32, n-9/32, (e) (%)ux-lla/8.

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