Question
All of the info is in the above image. NOTE THAT IT IS ASKING FOR AN AXIAL FORCE DIAGRAM, NOT A SHEAR FORCE DIAGRAM. SHEAR FORCE DIAGRAMS ARE ONLY USEFUL FOR DRAWING THE BENDING MOMENT DIAGRAM. INCLUDING THEM IN YOUR ANSWER IS UNNECESSARY. Thanks!
The following structure is made with an aluminum bar that has a rectangular cross-section oriented in such a way that the resistance to bending is maximized. The uniform distributed load starting at B is 300 N/m and is applied overa length of 1.5 m. Given the geometry, loads and supports in the structure find: The reactions in A and E needed to satisfy equilibrium. 9 points. The bending moment and axial force diagrams for each straight section of the structure. Use the sign convention discussed in class and draw the diagrams following the original orientation of each section of the structure. 21 points. The minimum value of yield stress the material of the structure must have to withstand the loads with a safety factor of 2 if the cross section has a width of 2.5 cms and the height of the 2 times its width. 10 points.
Explanation / Answer
Force Equations are :
In horizontal: Rah-1000+500=0