# MSE Test 2 - Denominator- multiply the absolute value of...

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Memorize the pictures. In The Stress problems, when you find Cos(phi) and cos(theta) the denominator and numerators are found in the following way: That’s the hard stuff. The rest is just plug and chug eqations and stuff you already know. I love you and I know you’ll do fine. FCC THETA : Numerator -(dot product of the slip direction and the the stress axis) Denominator - multiply the absolute value of the two from the top together**remembering there length. (aka remember to multiply the bottom by 2) PHI : Numerator -Stress axis and the normal to the slip plane (which has the same indices as the slip plane) Denominator -multpily the two from the numerator **remember there length (multiply by sqrt(2) xsqrt(3) THETA : Numerator -(dot product of the slip direction and the stess axis)
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Unformatted text preview: Denominator- multiply the absolute value of the two from the top together**remembering there length. (aka remember to multiply the bottom by sqrt(3)) PHI : Numerator-Stress axis and the normal to the slip plane (which has the same indices as the slip plane) Denominator-multpily the two from the numerator **remember there length (multiply by sqrt(2) ) FCC = ( ) τcrss cosθcos ϕ = ( & * { } Θ dotp slip direction stress axisslip direction stress axis 2 = ( & ) * { * } ϕ dotp stress axis normal to slip plane same indicies slip plane stress axis slip plane 2 3 BCC = ( & * { } Θ dotp slip direction stress axisslip direction stress axis 3 = ( & ) * { } ϕ dotp stress axis normal to slip plane same indicies slip plane stress axis slip plane 2...
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## This test prep was uploaded on 04/17/2008 for the course MSE 2001 taught by Professor Tannebaum during the Spring '08 term at Georgia Institute of Technology.

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