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- A spherical balloon is filled with a gas. The outer diameter of the balloon is 20 in. and the thickness is 0,012 in. Calculate the maximum permissible pressure in the balloon if the allowable tensile stress and the allowable shear stress in the balloon are 1 ksi and 0.3 ksi, respectively.arrow_forwardA cylinder filled with oil is under pressure from a piston, as shown in the figure. The diameter d of the piston is 1,80 in. and the compressive force F is 3500 lb. The maximum allowable shear stress t^^, in the wall of the cylinder is 5500 psi. What is the minimum permissible thickness t„± of the cylinder wall? (Sec figurearrow_forwardQuestion 2arrow_forward
- 1. Figure 3 depicts a bungee jumper coming to a stop at the bottom of the plunge before springing back up. A 570 N load is applied to a 90 m length bungee cord with a diameter of 4 mm and a Young's Modulus of 5.0 x 10⁹ Pa. i. ii. iii. 2. Is a bungee cord's Young's modulus less or larger than that of a regular rope? Calculate the bungee cord's stress Calculate the strain and extension of the bungee cord √000arrow_forwardA steel bolt of 6 mm in diameter has a tensile load of 40 kN. Find the average tensile stress at the section M and the screwed section N. where the diameter at the root of the thread is 4 mm as shown in Figure Q1.2. M -40KN 40KN4- 4 mm diameter 6 mm diameterarrow_forwardQ1/ (A) - The mechanism of femur bone is approximated as a circular tube (3 cm and 2 cm are the outer and inner diameter respectively) under loads as shown in figure Q1-A, determine the state of stresses at the points A and B. 40 cm 5 cm 380 N Figure Q1-A 300 Narrow_forward
- 2. A steel bolt of 6 mm in diameter has a tensile load of 40 kN. Find the average tensile stress at the section M and the screwed section N, where the diameter at the root of the thread is 4 mm as shown in Figure Q1.2. M --0- - 40 kN 40 kN - I mm diameter 6 mm diameter Figure Q1.2: Steel boltarrow_forwardMust answer all the question. Dont attempt it partially. Otherwise dont attempt.arrow_forwardA steel bar 2m long, 20 mm wide and 10 mm thick is subjected to a pull of 20 kN inthe direction of its length. Find the change in thickness. Take E-200 GPa and Poisson'sRatio 0.30arrow_forward
- Problem 3. Strains are measured on the surface of a structural component as &A = = 1200 x 10-6. EB = 500 x 10-6, &c = 300 × 10-6. E = 200 GPa and v = 0.3. b) a) Find the principal stresses and show these on a sketch of a properly oriented element. Use Mohr's Circle to find the stresses at 0 = 30° counterclockwise from the x axis and show these on a sketch of a properly oriented element. y 60° C B A Xarrow_forwardQ1. A crane hook has a triangular section at x-x as shown in Fig. Find the maximum stress at point P. 5 kN 60 0: 40 20 An dimiencions in mmarrow_forwardA beam with the mass of 3 Mg is hanging from cables. The center of gravity is directly below the point where the two cables meet and the two cables are at angles 0 = 25°, and = 30°. Let the diameter of cable AC be 12 mm. Find the diameter of cable AB so that it has the same normal stress as cable AC. B BY NO SA 2021 Cathy Zupke The diameter of cable AB is A e mm G e Carrow_forward
- Mechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage Learning