a. First, select your material. b. Second, assume a design factor of na = 1. c. Compute the diameter of the arm using distortion e materials). Note DE theory will use only the normal d. Select a preferred size (Table A-17) to decrease the c %3D

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2) The extension spring shown in figure has full-twisted loop ends. The material is BS 5216 Grade 2. The spring has 84 coils and is close-wound with a preload Inside dia. 50 mm of 80 N. a) Find the closed length of the spring. b) Find the torsional stress in the spring corresponding to the preload. 5 mm c) Estimate spring rate. 5 mm d) What load would cause permanent deformation? e) What is the spring deflection corresponding to the load found in part Running length= 100 mm Assembled length= 180 mm Free length= 200 mm

Learning Goal: To use Hooke's law to determine the value of an axial load applied to a rectangular shape and to determine its lateral expansion. The element shown below is subjected to the axial compressive force P, which causes the shape to contract longitudinally in the direction a distance of 8 = 0.720 mm. Let h = 144.5 mm, w = 88.50 mm, and L = 298.0 mm. Assume the element is made from steel that has a modulus of elasticity of E= 200 GPa and a value of Poisson's ratio of v=0.32. ♥ Part A Value of the axial load Determine the value of the axial load P. Express your answer to four significant figures and include the appropriate units. View Available Hint(s) P = Submit P μÀ Value Units ? Part B Lateral expansion in the y direction Determine the lateral expansion in the y direction due to the axial load. Express your answer to four significant figures and include the appropriate units. View Available Hint(s) dy = Submit d₂ = Value Part C - Lateral expansion in the z direction μA Submit…