If the sections shown below is subjected to a negative bending moment of 10kN, draw the 3D bending stress distribution. Please show all relevant calculations and values on your distribution. The position of the neutral axis is measured from reference point A

Determine the bending stress at B in MPa. [M = 100 kN.m; Ix 0.1907 x 103 m: 9= 0.0975 m] 300 mm LA 30 mm 150 mm 150 mun O 25.8 O 120.5 O 51.1 O 70.4

5. A 4-point bending test is performed on a beam of length L = 1 m. A load of P = 2000 N is applied across two loading points a distance a = 0.4 m from the sides of the beam. If the beam has a radius of r = 1 cm and a yield strength of σ = 250 MPa, does the bar yield? If it's an elastic-perfectly plastic material, does it fail all the way through the thickness of the bar? What would the yield strength of the material need to be if we wanted a factor of safety of 1.5?

i need the answer quickly

Draw shear force and bending moment diagrams. Indicate sign and peak values of internal forces. Use method of sections showing cuts and equations