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A 32mm rebar with a guage length of 200mm was subjected to tension to fracture according to ASTM E-8 method. The load and deformation data were as shown in table below.
Load(kn) Displacement(mm) Load Displacement0 0 472.9 8.462.2 .1 487.1 9.7188.9 .2 496.4 11.1329.8 .4 505.7 12.4383.4 1.7 512.8 13.7426 4.0 522.6 15.3447.3 5.9 532.4 18.5462.5 7.2 525.9 22.4
a Using a spreadsheet program obtain the following:
a) a ;lot of the stress strain realtionship.
b) a ;oot of the linear portion of the stress strain relationship.
c) proprotional limit
d) yield stress
e) ultimate strength
f) if the rebar is loaded to 390kn only ad then unloaded, what is the premantnt change in length.
a coaxial cable consists of a long straight filament surrounded by a long coaxial cylindrical conducting shell assume charge Q is on the filament zero net charge is on the shell and the electric field is E at a particular point P
determine by trigonometry (a) the required tensoin T2 in the left hand portion if the R of the force exerted by the cable at A is to be vertical, (b) the corresponding magnitude of R.
A hot air balloon starting on the ground ascends at a rate of 12 km/hr and is carried by the wind (horizontally) at a rate of 20 kn/h. When the balloon reaches a height of 50 m, a ballast bag is dropped.
A driver is traveling 68 mi/h on a road with a -3% grade. There is a stalled car on the road 1000 ft ahead of the driver. The driver's vehicle has a braking efficiency of 90% and anti-lock brakes.
The Big Bear town council has asked that you determine whether the discharge of the town's wastewater into the Salmon River will reduce the DO below the state standard of 5.00 mg/L at Little Bear, 5.79 km downstream.
A structural tension member of 10 ft. long with a square cross-section is subjected to a load of 120,000 lb. There is a choice between an aluminum alloy and structural steel, with the following information given for each.
A standard five-day BOD test is run using a mix consisting of four parts distilled water and one part wastewater (no seed) the initial DO of the mix is 9.0 mg/l , and the do after Five days, determined to be 1.0mg/l. what is BOD5
Determine the actual detention time observed in the field of two circular settling tanks with depth 3.5 m that was designed to have an overflow rate not exceeding 60 m3/m2-day and a detention time of at least 2 hour.
Sewage flows through a 12" diameter pipeline then through an 18" diamenter pipeline. The flow is the same (unknown) value in each pipe, and the slope is the same (unknown) contant value for both pipes.
why are the pressure for those p2/p1 different than whats given for question 3.2.3 in Fluid mechanices with engineering application 10ed
For a car traveling 35 mph the distance required to brake for a stop is normally distributed with mean of 55 feet and standar deviation of 8 feet. You are traveling 35 mph in a residential area and a car moves abrupt into your path at a distance o..
If the maximum total acceleration of the train must not exceed 1.5 m/s^2, determine the shortest distance in which the train can reach a speed of 72 km/h, and determine the corresponding constant rate of acceleration at.
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