T05.2 Mohr's Circle

T05.2 Mohr's Circle - Mohrs Circle T05.2 Does this bar have...

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Mohr’s Circle T05.2
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Does this bar have shear stresses in it?
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Does this bar have shear stresses in it?
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Does this bar have shear stresses in it?
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Does this bar have shear stresses in it?
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Can’t always do what we just did …nor do you generally want to!
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More Generally… xx yy xy         2 2 2 2 '' 22 ' ' 2 xx yy xx yy xx xy xy xx avg xy R   where   2 2 : 2 : 2 xx yy avg xx yy xy R      xy xx yy ' xx ' xy A
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Mohr’s Circle ' xy ' xx ( ,0) avg R
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Mohr’s Circle “How To” xy xx yy ' xx ' xy A
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Back to “Does this bar have shear stresses in it?” P P 12 ksi 9 ksi 3 ksi 5.2 ksi P 30°
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How is Mohr’s Circle Useful? Evaluate max (and min ) & max @ a point Failure surfaces Ductile materials maximum Aluminum, steel, titanium,… Brittle materials maximum tensile Cast iron, concrete, chalk,… Foam materials maximum compressive Very thin materials maximum compressive Coordinate transformations of stress components
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This note was uploaded on 12/19/2010 for the course EGR 75 taught by Professor Virgin during the Fall '08 term at Duke.

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T05.2 Mohr's Circle - Mohrs Circle T05.2 Does this bar have...

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