The state of stress in a machine element is illustrated in the stress element as shown in Figure 4: (a) (b) 250 MPa Figure 4 By calculations ie using equations or formulae find the following: The principal stress. 400 MPa 560 MPa The normal and shear stresses on a plane inclined at 30° CW. X

Answer the questions below for the following system. Young's modulus and Poison's ratio can be taken as 200 GPa and 0.3, respectively. a) Calculate and determine the stress state for point H using undergraduate level solid mechanics knowledge? b) Determine the principal stress values at point H using undergraduate level solid mechanics knowledge? Top view of section where H is located Point H no 300 mm 120 mm C .H 540 mm A Diameter of the pipe d=36 mm P=900 N

Either all or none..

(c) An element is subject to the stresses shown below in Figure 5 Calculate the centre and radius of the Mohr's stress circle and sketch the circle (1) (ii) Calculate the values of principal stresses and show them on the circle (ii) Determine the direction of the larger principal stress relative to the 75 N/mm. 30 N/mm A 14 Nmm 75 N/mm2 30 N/mm Figure 5

Calcuate Shear and Bending From Point A to Point B and Point A to Point C. Draw a FBD from point A to point B and another for point A to C indicating what stresses are been calculate. Use the stress tensor and stress cube to Indicate what forces are acting at point A. Force apply at point B is 70lb Distacen from Point A to B is 12 in or 1 feet long Distacen from Point A to C is 3 in Handle diameter 0.625 in

For the previous problem, compute the following six stress quantities: Ox, Oy, 0z, Txy, Tyz, Tzx. Assume this is an aluminum alloy (E = 10,000 ksi, G = 3800 ksi, v = 0.33). Do not forget units!

An element is subject to the stresses shown below in Figure 5 (i) Calculate the centre and radius of the Mohr's stress circle and sketch the circle (ii) Calculate the values of principal stresses and show them on the circle (iii) Determine the direction of the larger principal stress relative to the 75 N/mm?. 30 N/mm? 14 N/mm? 75 N/mm? 75 N/mm? 30 N/mm2 Figure 5

How would you solve this

Calcuate torsion From Point A to Point C, Calcuate Bending From Point A to Point B and Point A to Point C. Draw a FBD from point A to point B and another for point A to C indicating what stresses are been calculate. Use the stress tensor and stress cube to Indicate what forces are acting at point A. Force apply at point B is 70lb Distacen from Point A to B is 12 in or 1 feet long Distacen from Point A to C is 3 in Handle diameter 0.625 in

Problem #2: The following tank presents the following data: • External diameter of 16 inches • ½ inch wall thickness • Internal Pressure 600 psi. 12 kip ft ! B 48 kip ft A 16 in. - p = 600 psi For point B, determine: a) The state of normal and shear stresses. b) The maximum and minimum efforts. Indicate the orientation of the principal axes c) The maximum shear stress. Indicate the orientation of the axes for this effort