PVC bends must be made so that the conduit remains undamaged and the internal diameter of the conduit is ____.
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PVC bends must be made so that the conduit remains undamaged and the internal diameter of...
A closed cylindrical pressure vessel has an internal diameter of 1.0m and made of steel of thickness 0.01m. Principal stresses at a point A closed cvlindrical pressure vessel has an internal diameter of 1.0 m and is made of steel plate of thickness 0.010m. The internal pressure is 5 MPa. The vield strength of the steel under uniaxial tension is 200 MPa. Determine the principal stresses at a point on the internal surface of the vessel. Will the wall of...
4. (10 pts) An ascidian (sea squirt, phylum Urochordata), Styela montereyensis, bends over in currents so that its input aperture is directed upstream (see figure below or in textbook, pg 118). A current of 0.2 ms doubles the flow through the animal compared to its pumping rate in still water. If the still water pumping rate is 10 cm's, what is the internal resistance (resistance pressure drop divided by volume flow rate) of the animal? Assume that the ambient currents...
A compound vessel is obtained by shrinking an external cylinder of internal diameter equal to 200 mm and external diameter equal to 300 mm over a cylinder of internal diameter equal to 150 mm and external nominal diameter equal to 200 mm. Both cylinders are made of steel (E 205 Gpa) and an interference equal to 0.15 mm is used at the mating surface Calculate the radial and circumferential stresses at the inner and outer surfaces of the two cylinders,...
At a certain temperature, a ring made of steel (essentially iron) has a radius such that it can just slide along a cylinder also made of steel. At 20 ºC, the cylinder diameter is 64.45 mm and the internal diameter of the ring is 64.20 mm. So that the ring can slide along of the cylinder, its diameter must be 80 micrometers larger than that of the cylinder. Calculate at which minimum temperature the ring could slide along the cylinder....
A pressure vessel with an internal diameter of 2.1 m, and a wall thickness of 6mm, has a maximum working internal pressure of 0.6. 1 MPa. A through-thickness crack (Q=1), 5.3 mm in length is found during inspection. (i) Find the critical crack length that can be reached before failure occurs, and the corresponding number of cycles to failure. Kic = 50MN/m2 da 50 x 10-12 (A k)4.1 dN (ii) If the desired life cycle is N = 10,000, define...
A mild steel sleeve 14 cm inside diameter and 20 cm outside diameter is subjected internal pressure of 45 N/mm. The sleeve is rigidly hooped so that the ero. Determine the values of the radial and circumferential stresses outer surfaces. Proceed from Lame's equations and neglect axial stresses. v = 0.3 (Ans: inner: -45 N/mm, +2.2 N/mm², outer: -32.8 N/mm, -9.9 N/mm)
2. A container of ideal gas has a movable frictionless piston. This container is placed in a very large water bath and slowly compressed so that the temperature of the gas remains constant and equal to the temperature of the water. Which of the following statements about this gas are true for this process? (There may be more than one correct choice.) A) Heat leaves the gas during the compression. B) Since the gas and water are at the same...
Problem 1. A cylinder subjected to internal pressure p, has an outer diameter of 400 mm and a wall thickness of 20 mm. The cylinder is made of a material with = 60 MPa.m1/2 and contains a radial crack in the longitudinal direction of depth 8 mm. Assuming a design factor na 1.5, determine the pressure which causes uncontrollable crack growth. r: σ ! 1+윽 | . Where, and, are wall's internal and external radii, respectively)
H8-1: An 8-m-internal-diameter spherical tank made of 1.5-cm-thick stainless steel (k-15 W/m K) is used to store iced water at 0°C. The tank is located in a room whose temperature is 25°C. The convection heat transfer coefficients at the inner and the outer surfaces of the tank are 80 W/m2 K and 10 W/m2 K, respectively. Radiatior heat transfer is negligible. Determine the rate of heat transfer to the iced water in the tank. room 25°0c T. Iced water 0...
A hollow shaft has an internal diameter of 58 mm and a wall thickness of 4.7 mm Calculate its polar second moment of area, J. Input your answer in units of 10A-9 mA4 to 2 decimal places. So, for example, if J is found to be 530.6x10A-12 mA4, you should input 0.53 as your answer.