Question
Download Solution PDFA cantilever 2 m long beam carries point loads of 300, 500, and 800 N respectively at 0.5, 1.2 & 2 m from the fixed end. What will be the shear force (in N units) at the fixed end and bending moment (in N.m units) at the free end?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Shear force diagram:
The shear force at D is +800 N. This shear force remains constant between D and C. At C, due to point load, the shear force becomes (800 + 500) = 1300 N. Between C and B, the shear force remains 1300 N. At B again, the shear force becomes (1300 + 300) = 1600 N. The shear force between B and A remains constant and equal to 1600 N. Hence the shear force at different points will be as follows:
S.F. at D, FD = +800 N
S.F. at C, FC = +1300 N
S.F. at B, FB = 1600 N
S.F. at A, FA = 1600 N
The bending moment at D is zero.
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