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A 1047 steel plate is subjected to a tensile stress of 120 MPa. Given its fracture toughness is 45 MPa?m and Y = 1, (a) Determine the critical crack length to assure the plate will not fail under static loading. (b) Consider the same plate under the action of cyclic tensile/compressive stresses of 120MPa and -30 MPa, respectively. If the component is to remain safe for 10 million cycles, what is the largest allowable crack length? (c) Compare the two critical crack lengths in (a) and (b), comment on the effect of the type ofloading on critical crack length.
At 100 km downwind (y=10m), what is the concentration of NOx in g/m^3. The wind speed at the top of the stack with a height of 100m is 6.5 m/s and an inversion layer of 750m
A 14-in. square concrete post is 6ft tall and reinforced by nine 3/4" diameter steel rods. Assume that the materials are high-strength concrete and ASTM-A36 structural steel.
A biological reactor is used to treat wastewater from a small community (Q = 100,000 gpd). The influent BOD5 concentration to the reactor is 200 mg/L and the required efflue
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Compute the height (h) of the water tank above theground surface to provide a static pressure of 75 psi. Compute the pressure at a point in a building that is 40 feet abovethe
An equal-tangent crest vertical curve has a 50 mi/h design speed. The initial grade is +3%. The high point is at station 33+37.43 and the PVT is at station 37+18.26. What is
Write an essay on the topic "application of geophysical techniques using electromagnetic induction as a tool for sustainable soil and water management of agricultural fields
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