Tutorial 5 - Principal And Inclined Plane Stresses Part 1

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09:17 Concept of Principal And Inclined Plane Stresses

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25:51 Problem 1

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34:33 Problem 2

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48:14 Problem 3

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58:46

$\tau =0$ for planes of ${\sigma }_{\text{max/min}}$

$\sigma ={\sigma }_{\text{avg}}$ surrounding the element for planes of ${\tau }_{\text{max/min}}$

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