e. The beam is made by steel (yield stress of 275 MPa, it is assumed that this is the same in tension and compression) and has a double T cross- section with the dimensions specified in Figure 1.1 and a second moment of area with respect to the x-axis of 918 cm4. Check if the cross- section of the beam ensures a safe design with respect to plastic deformation. [9 marks] X 1.0 1.0- Page 3 of 6 Figure 1.1 Cross-section of the beam (all dimensions in cm) -9.5- 4.5- -10.0- -1.0 -20.0- End of Question 1. Paper continues/... CHEN20191 -9.5 10.0