Mechanics of Materials - Angle of twist example 2

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Mechanics of Materials
Strength of Materials Like and subscribe! And get the notes here:

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could you explain why we switched the 200 N.m/m to 100 N.m as well as why did we make it go clockwise for 150

funwatchtv
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Nearly perfect. 13:03 Just a little mistake, it's x=0 to x= 500 since we're working in mm.

ASA-ggdc
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This is absolutely wrong. Right before 250Nm you have 150 and 100 Nm clockwise which adds up to 250Nm counter clockwise so the result is zero. Max shear stress happens at A and minimum happens at 0.5m.

jackiehenderson