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Machine Design

The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be_________________?

Machine Design /
The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be_________________?

A. same in both cases
B. 2 times more
C. 3 times more
D. 4 times more
E. unpredictable

The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be_________________? Read More »

Machine Design

If an unsupported uniform cross sectional elastic bar is subjected to a longitudinal impact from a rigid bob moving with velocity v, then a compressive wave of intensity sc is propagated through the bar as follows______________________?

Machine Design /
If an unsupported uniform cross sectional elastic bar is subjected to a longitudinal impact from a rigid bob moving with velocity v, then a compressive wave of intensity sc is propagated through the bar as follows______________________?

A. vpE
B. vVvF
C. WpE/2
D. IvHpE
E. none of the above, where E = modulus of elasticity and p = mass density

If an unsupported uniform cross sectional elastic bar is subjected to a longitudinal impact from a rigid bob moving with velocity v, then a compressive wave of intensity sc is propagated through the bar as follows______________________? Read More »

Machine Design