Question

A square cross-section XXX mm beam, 2 metres long, is loaded from above in the middle with a load of Y=2 kN causing a compressive Bending Stress at the top of

the beam. The beam i addition experiences a tensile end loading of Z=283 kN causing an End-Loading Stress, as illustrated in Figure Q9. Calculate the width and height of the beam to the nearest millimetre in order to reduce total stress at the top of beam to be near zero? Stating your answer to the nearest millimetre. X mm Z KN Load causing a compressive ing stress bending Y Y KN X mm, Square cross section Z Load causing end-loading tensile stress Figure Q9 Z KN I (5 marks)

Fig: 1