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Discuss the cyclic deformation of a material in terms of the two-element Masing model, assuming elastic-perfectly plastic response.
(a) Construct the hysteresis loops for a small amplitude at which only the softer elements yield plastically and for a larger amplitude at which both elements yield plastically.
(b) Show that the so-called 'permanent softening' is expected only in one of the two cases and that the amount of permanent softening is equal to twice the internal back stress in the soft elements.
(c) Considering both cases, can permanent softening be considered an unambiguous measure of the back stress?
(d) Describe the occurrence of the Bauschinger effect in terms of deformation-induced internal
The cash flow associated with landscaping and maintaining a certain monument in Washington, D.C., is $100,000 now and $50,000 every 5 years forever. Determine its perpetual equivalent annual worth
Determine the moment about the origin O of the force F = 4i - 3j + 5k that acts at a point A. Assume that the position vector of A is (a) r = 3i - 6j + 5k, (b) r = i - 4j - 2k, (c) r = -8i + 6j -8k
Helium gas is compressed isentropically from 1 bar and 25 C to a pressure of 10 bar. The temperature of Helium after the compression is A) 25 C B) 63 C C) 250 C D) 384 C E) 476 C
Suppose that all the dislocations in 1000 mm^3 (1 cm^3) were somehow removed and linked together end-to-end. How far (in miles) would this chain extend
When a channel of triangular cross section was new, a flowrate of Q caused the water to reach L = 2 m up the side of the channel. After considerable use
a 6 inch soil cement base and an 8 inch crushed stone subbase, which truck will cause more pavement damage?(assume drainage coefficients are 1.0)
Find the required diameter of the force main PA, (dPA), if the pressure at point A is not allowed to drop below 370 kPa. Determine the required diameter of pipe BC, (dBC), if the maximum allowed head loss in the network ABC is 0.003 m/m.
a 2.50-g sample of a large biomolecule was dissolved in 25.0 g of carbon tetrachloride. the boiling point of this
What is the effective stress 25 feet deep if the specific weight of the dry soil (dry unit weight) is 120 pcf and the water table is 12 feet deep
A man has a mass of 100 kg. how much pressure would he apply to an I-beam if his shoes each have an area of 50 cm? what is his normal force?
A 2-kg block slides on the smooth circular path (Quadrant One of full circle, block moving left to right). If it is released from rest when theta=0 degrees, determine the force it exerts on the path when it arrives at Point A
A piece of rock weighs 301 N in air and has an apparent weight of 202 N when suspended under water. What are the volume and density of the rock
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