A 3-point bending test is performed on a simply supported beam of length L=4m and of rectangular cross-section, with width b and height h.
For a central load of 10kN, draw the bending moment and shear force diagrams for the beam. Then answer the following questions about the shear force V and bending moment M.
What is the shear force in the beam at x=0.5,1.5,2.5 and 3.5m?
V (kN, x=0.5):
V (kN, x=1.5):
V (kN, x=2.5):
V (kN, x=3.5):
What is the moment in the beam at x=0,1,2,3 and 4m?
M (kNm, x=0):
M (kNm, x=1):
M (kNm, x=2):
M (kNm, x=3):
M (kNm, x=4):
At what length along the beam do the maximum stresses occur? Express your answer in terms of the beam length L.
Location of maximum stresses:
Now assume that the beam has a width b=10cm and a height h=20cm. Calculate the maximum stress in the beam.
σmax (in MPa):
1 answer
0,0,0
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