MMET 376: Strength of Materials Homework Set 4 Spring 2023 Due: Feb. 27th Problem 4.3 (10 points) Do Not Reproduce or Reprint A shaft is made up of elements (1), (2) and (3). Elements (1) and (2) have solid cross sections each with a diameter of d, and lengths & and 24 respectively. Element (3) has a tubular cross- section with inner and outer diameters of d and 2d, respectively. Elements (1) and (2) are connected at a rigid connector at C, whereas elements (2) and (3) are joined with a rigid connector at H. Elements (1) and (3) are rigidly connected to grounds at ends B and D. respectively. The material makeup of each element is the same, having a shear modulus of G. Torques are applied at C and H. as shown in the figure. a) Determine the torques carried by each element. Express your answers in terms of T. b) What is the maximum shear stress in the shaft? Express your answers in terms of 7' and d. At what points on the shaft does this maximum shear stress exist? ERS Do Not Reproduce or Reprint C Do Not Reproduce or Reprint H L 2d 27 d d (2) (3) 2 L 2L