A redwood timber member having a
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Applied Statics and Strength of Materials (6th Edition)
- Write application software program to find the shortest length of aluminium tubes 50 mm O.D. x 45 mm I.D. with minimum induced stresses to be used in a two-bar truss. The two tubes are hinged to supports that are 2 m apart, as illustrated below. Stress in the tubes should be kept below the yield strength of the material at 320 MPa. 2 m 200 Kgarrow_forwardAlso draw the free body diagramarrow_forwardA stepped bar is subjected to an axial tensile force of 40000 lb.Compute the increase in stress due to stress concentration in the bar with D =12.00 in., d = 4.00 in., and r = 0.4 inarrow_forward
- PRELIMINARY DISCUSSIONS PME 412 - MACHINE DESIGN 1 PROBLEM: Find the values and plot the distribution of stress over the cross section of the upright of the figure. Locate the point of zero stress. 9,000 N 60 mm thick - 100 mm -50 mmarrow_forwardFor operating the exhaust valve of a petrol engine, the maximum load required on the valve is 5000 N. The rocker arm oscillates around a pin whose centre line is 250 mm away from the valve axis. The two arms of the rocker are equal and make an included angle of 160°. Design the rocker arm with the fulcrum if the tensile stress is 70 MPa and the bearing pressure is 7 N/mm2. Assume the cross-section of the rocker arm as rectangular.arrow_forwardcompute the maximum stress in the member, considering stress concentrations.arrow_forward
- A 3-in. by 6-in. steel (E-29,000 ksi) bar (4-foot long) is subjected to the loads shown. Calculate the combined stresses at points A and B (be sure to indicate either tension or compression). Remember, the bar is bending in the strong direction so calculate your I accordingly. 1(1/12) (B)"(H) S=l/c A B. 6" 10,000 lbs 45,000 Ibsarrow_forwardWhat wall thickness in mm is required for a 634 mm diameter cylinder under an internal pressure of 18 MPa? Use a design stress of 80 MPa?arrow_forwardThe one end of a hollow square bar whose side is 10.42 in with 1.42 in thickness is under a tensile stress 102,500 psi and the other end is connected with a U bracket using a pin. Find the minimum diameter of pin is used. Take oall = 243 ksi for pin material.arrow_forward
- Problem Solving: Show your Solution 1. A sculpture weighing 10,000 N rests on a horizontal surface at the top of a 6.0-m-tall vertical pillar. The pillar’s cross-sectional area is 0.20 m20.20 m2 and it is made of granite with a mass density of 2700kg/m3.2700kg/m3. Find the compressive stress at the cross-section located 3.0 m below the top of the pillar and the value of the compressive strain of the top 3.0-m segment of the pillar. 2. A 2.0-m-long steel rod has a cross-sectional area of 0.30cm2.0.30cm2. The rod is a part of avertical support that holds a heavy 550-kg platform that hangs attached to the rod’s lower end.Ignoring the weight of the rod, what is the tensile stress in the rod and the elongation of the rodunder the stress? 3. In a hydraulic press, a 250-liter volume of oil is subjected to a 2300-psi pressure increase. If the compressibility of oil is 2.0×10−5/atm,2.0×10−5/atm, find the bulk strain and the absolute decrease in the volume of oil when the press is operating.…arrow_forwardPlease don't copy from other sources.will report The section of a crane hook is rectangular in shape whose width is 30 mm and depth is 60 mm. The centre of curvature of the section is at a distance of 125 mm from the inside section and the load line is 100 mm from the same point. Find the capacity of the hook, if the allowable stress in tension is 75 MPa. Also determine the location of the neutral axis and the stress at inner and outer fiber.arrow_forward3. Choose True or False. a) Consider the truss below that is made up of elements (1) and (2). TRUE or FALSE: The stress in element (1) depends on the material makeup of element (2). b) Consider the truss below that is made up of elements (1), (2) and (3). TRUE or FALSE: The stress in element (1) depends on the material makeup of elements (2) and (3). HW (2) (2) (1) B C (a) B (1) (3) с (b)arrow_forward
- Mechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage Learning