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A screw thread is cold rolled on a 1015 low-carbon steel bolt of 6.25 mm diameter. Observation shows that the length of the contact zone between die and screw blank is L = 1.25 mm. The average strain hardening during rolling corresponds to a strain of μ= 0.4.
Calculate:(a) the applicable flow stress, and(b) the average interface pressure in the contact zone.
Determine:(c) if there is any danger of internal fracture (make a sketch to illustrate the point).
Why is the torque on A and the torque on AB opposite? Wouldn't they be the same? How do we know which direction the torque is applied at A to begin with? It's not specified.
If I raise a 1000 lbf weight 100 feet above sea level on earth in 10 seconds how much power will be required
Air enters adiobatic compressor at 100kpa, 20 degrees celcius at rate of 0.1 kg/s and exits at 200 degrees celcious. compressor efficiency is 70%. Determine the exit pressure and power required.
A rigid tank contains 40 lbm of air in 20 psia and 70 degrees F. More air is added to the tank untill the pressure and temperature rise to 35 psia and 90 degrees F, respectively.
If biodegradable organic matter, oxygen, and microorganisms are placed in a closed bottle, the microorganisms will use the oxygen in the process of oxidizing the organic matter. The bottle may be treated as a batch reactor
1. The three isometric axes are: vertical and two axes 30 degrees from horizontal. 2. Oblique projection is a perspective projection method. 3. Isometric view represents a parallel projection method.
Water is pumped up 20 feet from one large, open tank to another large, open tank as shown in the figure below. The pipe connecting the 2 tanks has a total length of 200 feet and a diameter of 6 inches.
a). Determine the state of stresses in the walls and indicate these stresses (including arrows to denote the direction of the stresses) on the element below. b). Then, determine the maximum in-plane shear stress on the wall of the pipe using Mohr's..
A water treatment plant is being designed for a flow of 1.6 m^3/s. How many rapid sand filters, using only sand as the medium, are needed for this plant if cross-sectional area of each filter is 10 m x 20 m?
if D has a mass of 600 kg, determine the required mass of C, the maximum sag h of the cable, and the length of the cable between the pulleys A and B. The Beam has a mass per unit length of 50 kg/m.
We have a small wood deck, 8' by 8' This deckshould only have a max of five adults on it. Oneside of deck is attached to the wall of the house, and out fromthis wall is two post six feet from the wall. Problem is the load bearing strength of the be..
Explain the Methods of damp proofing
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