Question: Please help solve Allowable bending stress = 3 5 0 MPa Allowable shearing stress = 2 4 0 MPa b = 3 0 0 m

Please help solve
Allowable bending stress =350MPa
Allowable shearing stress =240MPa
b=300mm
d=550mm
a uniform varying load is carried by a fixed cantilever beam throughout the span of 12m12kNm at the fixed support @ 0 then 18kNm at the end of the span.
a. The beam exceeds bending capacity.
b. The beam is safe in shear
2. Allowable bending capacity =200MPa
Allowable shearing capacity =100MPa
b=250mm
d=400mm
a simply supported 11m beam is loaded at the midspan with 1000kN point load.
a. The beam is safe in moment capacity
b. The beam exceeds shear capacity
Please help solve Allowable bending stress = 3 5

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