Term
| What are the units of shear stress? |
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Definition
| force per area, like psi or MPa |
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Term
| To solve for the maximum shear stress, what is Q for a rectangle with a base of 2 and a height of 6? |
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Definition
Q = area * distance
max. is at the ENA
y bar = 3"
area = 3" x 2" = 6 in^2
distance = 3/2 = 1.5"
Q = 9 in^3 |
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Term
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Definition
| length cubed, like in^3 or mm^3 |
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Term
| If you have a T cross-section and are asked to find shear stress at the junction between web and flange, what do need to remember? |
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Definition
You have to do the shear stress calc twice: one with the large thickness and the other with the small thickness.
There is a jump in shear stress plot when the thickness is discontinuous. |
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