A compressed gas cylinder for use in mechanical engineering laboratory has an internal gage pressure of 8 MPa at the time of delivery. The outside diameter of the cylinder is 30 cm. If the steel has an allowable stress of go MPa, what is the required thickness of the wall in centimeter? Is it considered a thin walled? [Checking: thickness/inside radius < o.1, thin walled) "Yes or No Next pa IS ACTIVITY Quiz 1 NEXT ACTIVITY Midterm Exam Jump to.. Learning Management System initiative from UCU-MiS+ based on moodle platform. ere to search 72 HUAWEI

A compressed gas cylinder for use in mechanical engineering laboratory has an internal gage pressure of 8 MPa at the time of delivery. The outside diameter of the cylinder is 30 cm. If the steel has an allowable stress of go MPa, what is the required thickness of the wall in centimeter? Is it considered a thin walled? [Checking: thickness/inside radius < o.1, thin walled) "Yes or No Next pa IS ACTIVITY Quiz 1 NEXT ACTIVITY Midterm Exam Jump to.. Learning Management System initiative from UCU-MiS+ based on moodle platform. ere to search 72 HUAWEI

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter2: Axially Loaded Members

Section: Chapter Questions

Problem 2.2.17P: A hollow, circular, cast-iron pipe (Ec =12,000 ksi) supports a brass rod (Ec= 14,000 ksi} and weight...

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A wine of length L = 4 ft and diameter d = 0.125 in. is stretched by tensile forces P = 600 lb. The wire is made of a copper alloy having a stress-strain relationship that may be described mathematically by =18,0001+30000.03(=ksi) in which is nondimensional and has units of kips per square inch (ksi). (a) Construct a stress-strain diagram for the material. (bj Determine the elongation, of the wire due to the Forces P. (c) IF the forces are removed, what is the permanent set of the bar? (d) If the forces are applied again, what is the proportional limit?
A safety valve on the top of a tank containing steam under pressure p has a discharge hole of diameter d(see figure). The valve is designed to release the steam when the pressure reaches the value Pmax If the natural length of the spring, is L and its stiffness is k, what should be the dimension ft of the valve? (Express your result as a formula for h.)
The stresses on an element are sx= 1000 Psi. sy= 500 psi, and txy= 350 psi. Find the stresses acting on an element oriented at an angle 0 = 250. Show these stresses on the rotated element.
A hollow, circular, cast-iron pipe (Ec =12,000 ksi) supports a brass rod (Ec= 14,000 ksi} and weight W — 2 kips, as shown. The outside diameter of the pipe is dc= 6 in. (a) If the allowable compressive stress in the pipe is S00O psi and the allowable shortening of the pipe is 0.02 in., what is the minimum required wall thickness trmm? (Include the weights of the rod and steel cap in your calculations.) (b) What is the elongation of the brass rod Srdue to both load Wand its own weight? (c) What is the minimum required clearance h?
An aluminum bar has length L = 6 ft and diameter d = 1.375 in. The stress-strain curse for the aluminum is shown in Fig. 1.34. The initial straight, line part of the curve has a slope (modulus of elasticity) of 10.6 × 106 psi. The bar is loaded by tensile forces P = 44.6 k and then unloaded. (a) That is the permanent set of the bar? (b) If the bar is reloaded. what is the proportional limit? hint: Use the concepts illustrated in Figs. l.39b and 1.40.
The hollow drill pipe for an oil well (sec figure) is 6,2 in. in outer diameter and 0.75 in. in thickness. Just above the bit, the compressive force in the pipe (due to the weight of the pipe) is 62 kips and the torque (due to drilling) is 185 kip-in. Determine the maximum tensile, compressive, and shear stresses in the drill pipe.
Figure Q2 shows the cross-section of a closed ended thick-walled cylinder with inner radius, ri, 0.1 mand outer radius, ro, 0.2 m. The cylinder is subjected to internal pressure, pi and external pressure, po.One of the design specifications is to maintain the hoop stress at the outer surface of the cylinder at zerovalue. If po = 50 MPa and by using Lame’s equations for thick-walled cylinder, (a) determine the value of pi to achieve the design specification (b) sketch the hoop, radial, and longitudinal stress variations across the wall thickness and label their values at the inner and outer radius of the cylinder (c) determine the absolute maximum shear stress existing in the cylinder wall material
A thick-wall underwater pipe is placed at 20m below sea level. The pipe is carryingcompressed natural gas with pressure of 50 MPa. The pipe has 115mm outer diameter andmade of 316 stainless steel with yield strength of 205 MPa. The density of sea water could betaken as 1029 kg/m3. Find out:a) What is the resultant outer pressure acting on the underwater pipe? b) What is the minimum inner diameter to ensure the pipe does not yield?c) Sketch the variation of hoop and radial stress across the pipe wall, completed with stresslabelling. d) What is the resultant longitudinal stress of the pipe?
A pressure difference of 35 pa is available to force -10c air. through a circular sheet metalduct 400 mm in diameter and 20m long. Find thevelocity in m/s. A.11.64 B.38.20 C.12.81 D.20.60 SHOW DETAILED SOLUTIONS
7.10 A rigid bar is suspended by three equally spaced wires of equal length. Theouter wires are steel and are 2 mm in diameter, the centre wire is copper andis 5 mm in diameter. If the weight of the rigid bar is 2,25 kN, calculate the loadcarried by each wire. If the temperature of the system is now raised by 90 °C, what will the magnitude and nature of the resultant stresses set up in the steeland copper wires be. (Let EST = 200 GPa; Ecu = 100 GPa; aST = 12 x 10_6/°C;acu = 18 x 10-6/°C?)
P = 80 kN σt = 150 MPa t = 8.0782 mm Can you help me solve for d2?
Find the stresses in each direction, also find the change in volume of the block of dimension 120 mm x 45 mm x 43 mm, subjected to 3 mutually perpendicular loads. The load along length, breadth and depth directions are 10 kN (tensile), 20 kN (compressive), 16 kN (compressive) respectively. Take E as 140 GPa, Poisson’s ratio as 0.3 The stress along length direction (Unit in MN/m2)= The compressive stress along width direction (Unit in MN/m2)= The compressive stress along depth direction (Unit in MN/m2)= The change in volume of the block is (unit in mm3) =