Civil Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 5 (Q.No. 19)
19.
If S is the shear force at a section of an I-joist, having web depth d and moment of inertia I about its neutral axis, the difference between the maximum and mean shear stresses in the web is,
Discussion:
12 comments Page 2 of 2.
Aru said:
9 years ago
Stress = f/area.
bd^3/12= I,
Thus bd =12I/d^2,
avg stress = Sd^2/12I.
We know max stress is 1.5 * avg stress,
Diff = Sd^2/24I.
bd^3/12= I,
Thus bd =12I/d^2,
avg stress = Sd^2/12I.
We know max stress is 1.5 * avg stress,
Diff = Sd^2/24I.
Alana said:
9 years ago
Can anyone explain it?
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