calculate the maximum bending stress and draw the shear stress and moment diagra

Question

calculate the maximum bending stress and draw the shear stress and moment diagrams.  Any help toward the actual design problem will be awarded best answe

You are asked to design a minimum-mass cantilever beam able to resist the loads depicted in the figure (two distributed loads, in the y and z directions, wy = 5 kN/m and w. = 7 kN/m, respectively, and three concentrated loads in the y and z directions (Py = Pz = 1.5 kN)). The length of the beam is given: L = 2 m. Your design variables are the shape and size of the cross-section and the choice of any existing material. The cross-section must fit within the square region depicted below, with a = 15 cm. Use a safety factor of 1.2 on the allowable stresses (i.e., sigma all = sigma Y / 1.2). Choose shape, dimensions and material of the cross-section to obtain a minimum mass design. Clearly identify the material chosen and specify its properties. Clearly specify the resulting mass of your beam. The cross-section must remain identical along the length of the beam (i.e., the beam is not tapered). Repeat the design problem in (a), but allowing for a taper of your choice. Clearly specify the taper function (i.e., how the section is varying along the x direction) and the resulting mass of your beam. How much lighter is your design compared to the design at point (a)? Discuss the manufacturing process you choose to fabricate your beams (both for designs (a) and (b)). You are encouraged to consult external sources (books, journal articles, etc...) to gather knowledge on the manufacturability of your intended designs. Note: to keep things relatively simple, use the following rules: Ignore shear stresses (and design based uniquely on bending stresses).

Explanation / Answer

Do your own 150 Design Problem. It is people like you who raise the curve. Cheaters!

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