In (Figure 1), y = 13.9 ksi. Figure 10 ksi < 20 ksi 1 ▼ Determine the principal stresses. Specify the orientation of the element. Express your answers, separated by commas, to three significant figures. 01, 02, 0p1 = Submit Part B 15| ΑΣΦ | it | vec Ta in plase Request Answer -, avg=, 0,= Submit 1 Request Answer @ 200 Determine the maximum in-plane shear stress and average normal stress. Specify the orientation of the element. Express your answers, separated by commas, to three significant figures. 195| ΑΣΦ. 11 Ivec 4 → ? www. ksi, ksi, (clockwise) ? 0 ksi, ksi, (clockwise)

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The state of stress at a point in an engine piston is given in the x-y-z coordinates by: 90 180 [0]=0, MPa = 180 240 yx yy 120 zy Using the matrix transformation law, determine the state of stress at the same point for an element rotated about the x-axis (in the y-z plane) 60° clockwise from its original position. Calculate the stress invariants and write the characteristic equation for the original state of stress, Calculate the deviatoric invariants for the original state of stress, Calculate the principal stresses and the absolute maximum shear stress at the point. What are the stress invariants and the characteristic equation for the transformed state of stress, а. b. С. d. e

a) Refer to the figure below. Even though the cyclic loading accidentally caused the stresses to exceed the levels at point A slightly (as marked by the red arrow), the machine part may not break instantly according to the Modified Goodman fatigue failure criterion. True or False - Yield (Langer) line Gerber line - Load line, slope r = S„ISm Modified Goodman line S. I JA ASME-elliptic line Soderberg line ! Sm S, Midrange stress om b) good fatigue design should keep the fatigue design factor of safety at a minimum value of (_ Alternating stress o