Question
Download Solution PDFA 20 mm diameter circular rod carries a pull parallel to the centroidal axis at a distance from it. Find the eccentricity if the maximum stress is 20 percent greater than the mean stress at a section normal to the axis.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Consider a circular rod subjected to a pull parallel to the centroidal axis at a distance from it as follows:
Mean stress,
Now, Maximum stress due to eccentric load,
Where P = load, A = Area, d = diameter circular rod, e = eccentricity, and Z = sectional modulus =
Calculation:
Given data
d = 20 mm
So, Maximum stress
σmax = 1.2 σmean
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