Q105
A beam is loaded as cantilever. If the load at the end is increased, the failure will occur
A.
In the middle
B.
At the tip below the load
C.
At the support
AnswerD.
Anywhere
Answer: Option C
Solution
Answer: Option C
Solution:
In a cantilever beam, the maximum bending moment occurs at the support where the beam is fixed. When the load at the end is increased, the stress at the support increases significantly.
As a result, the failure is most likely to occur at the support, where the bending stress is the highest.