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For each of the following cases, plot the load (P) versus the crack opening displacement (8) curve for a metallic material subjected to loading and unloading phases in zero-tension-zero fatigue:
(a) Plastic deformation at crack tip; no change in crack configuration (i.e. crack opening and crack length); loading phase.
(b) Gradual opening of the crack during the loading phase and plastic deformation at crack tip.
(c) Elastic behavior at constant crack configuration during the loading phase.
(d) Effect of plastic behavior = effect of configuration change on the P-δ plot during the unloading phase.
(e) Effect of plastic behavior > effect of configuration change on the P-δ plot during the unloading phase.
(f) Effect of plastic behavior < effect="" of="" configuration="" change="" on="" the="" p-="" δ="" plot="" during="" the="" unloading="" phase.="">
(g) Configuration change during the unloading, with negligible plastic deformation at crack tip.
Saturated liquid water at 1.0 MPa is throttled adiabatically to a pressure of 0.4 MPa. If the change is kinetic energy is negligible, what percentage of the water evaporates during this throttling process
A particular unit cell is cubic with ions of type A located at the corners and facecenters of the unit cell and ions of type B located at the midpoint of each edge of the cube and at the body centered position.
determine the stations and elevations of the PVCs, PVIs and PVTs of the two vertical curves required to connect the highway segments, as well as the length of the constant grade section (connecting grade is to be small as possible).
Pressure loss in the suction pipe work is directly proportional to water veloicty in the pipe work squared, which is inversely proportional to suction pipe work diameter squared.
You have been hired to review an accident scene where a vehicle hit a light pole at the intersection of main and 5th. The vehicle was estimated to hit the light pole at 30 mph.
A flat disk spins within an oil-filled enclosure. Clearances between the enclosure to both sides of the disk is 2.3 mm. The disk surface (area subject to shear) extends from radius 10mm to 90 mm.
Vehicles arrive at a tollbooth according to the function h(t)= 5.2-0.2t, where h(t)is in vehicles per minute and t is in minutes. The toll booth operator processes 3 vehicles per minute. Determine the total delay, maximum queue length, and the time i..
consider a house into which radon is emitted through cracks in the basement. the total volume of the house is 650 m3
You are a construction engineer working on a large concrete foundation project, involving the placement of over 500,000 c.y of concrete. The construction site is adjacent to a salt-water source (bay) & it is decided to set up a concrete batch plant o..
1-what criteria should zachary use evaluate the project ?2-what assumptions should he make?3-what additional data and
The perpendicular distance between two parallel tangents of a reversed curve is 20m. The azimuth of the back tangents of the curve is 270 00 and the azimuth of the common tangent is 310.
Choose two research papers in construction management area from best international journal in construction management-one quantitative and the other qualitative-from the construction management literature.
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