20 20 b Where 0=30°

Mohr's circle is shown for a point in a physical object that is subjected to plane stress. Each grid square is 280 psi in size. (a) Determine the stresses Ox, Oy, and the magnitude of Tyand show them on a stress element. (b) Determine the principal stresses and the magnitude of the maximum in-plane shear stress acting at the point and show these stresses on an appropriate sketch (e.g., see Figure 12.15 or Figure 12.16). y Answer: (a) Ox = i ! psi Oy= i ! psi %3D Txy = psi (b) Op1 = i psi Op2 = i psi Tmax in-plane psi

Part B - The internal reaction at B Assume that the axial member is in equilibrium and the applied forces are an unknown load F₁. F = 5 kN. F₂ = 3 kN, and F₁ = 2 kN. Calculate the internal resultant normal force at section B. Express your answers to three significant figures in kN. ▸ View Available Hint(s) PB = Submit ΨΕ ΑΣΦΠ Part C - The internal reaction at D PD = Submit D] ΑΣΦΩΤ vec Assume that the axial member is in equilibrium and the applied forces are an unknown load F₁, F₂=5 kN. F₂ = 3 kN. and F₁ = 2 kN. Calculate the internal resultant normal force at section D. Express your answers to three significant figures in kN. ▸ View Available Hint(s) Part D - The average normal stress µA vec Value P * ? ? Units KN 2 ? Suppose the axial member has a circular cross section with a diameter of d = 16 cm at section B and a diameter of dp = 8 cm at section D. What is the average normal stress in the section with the maximum magnitude stress? Express your answer to three significant figures…

State of plane stress question