Mechanics of Materials Coursework: You are asked to design a door handle in an aircraft, as shown in Figure 1. The loads

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Mechanics Of Materials Coursework You Are Asked To Design A Door Handle In An Aircraft As Shown In Figure 1 The Loads 1 (121.44 KiB) Viewed 36 times

Mechanics of Materials Coursework: You are asked to design a door handle in an aircraft, as shown in Figure 1. The loads and major dimensions are provided in Table 1. You, as a designer, are free to choose the other geometric parameters freely considering that design requirements for safety factors are satisfied. The bracket is mounted on the locking mechanism by the help of a flange. There is a fillet of radius r at the transition from the hollow shaft to the flange. I do d₁ Figure 1 Door handle geometry Parameterised geometric data choices are given in Table 1. Table 1. Parametric data for design problem. F a b (N) (mm) (mm) 1600 100 165 F h 1) By doing a literature survey and/or consulting materials databases, choose a type of aircraft grade aluminium alloy for the material to be used in the design. [10 marks] 2) The bracket is expected to withstand a force of F without yielding. Size your design to provide a reasonable Factor of Safety for static yielding. [15 marks] Please refer to the techniques taught in the year 2 modules: "Stress Analysis". You should find the stresses at the most critical location with respect to the coordinate system shown. Then find the Principal Stresses, Maximum Shear Stress, von Mises Stress and the planes on which Principle Stresses and Maximum Shear Stress are acting. Show these planes by drawing a schematic at the critical location. Use a suitable static failure criterion!