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Learn Mohr Circle equations & worked examples, with a focus on graphical analysis. Explore shear stress conventions in New Zealand. Watch a tutorial video for practical understanding.
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Prologue • This PowerPoint will be proceeded by a derivation of important Mohr Circle equations.
Note this txy turns the element CCW, plot x below the s axis
Recall this txy turns the element CCW, plot x below the s axis
Yellow angle has tangent 20/50, yellow angle = 21.8o
An example from New Zealand • In New Zealand the shear stress t sign convention is reversed from the one we are currently using. Doesn’t matter, circles are symmetrical. • Notice the strong graphical use, relying on a scale (ruler) for graphing and measurements. http://www.youtube.com/watch?v=SQ7UYPN1Yrg Video by Steve Tomsett at CPIT