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Consider the crack growth results shown in Fig. 11.10 for the alumina silicon carbide composite at 1400 °C. Using the procedure outlined in Section 11.2.2 predict the crack growth characteristics under cyclic loads on the basis of the static crack growth results by assuming that the mechanisms of static and cyclic fracture are the same at the elevated temperature. Compare your predictions with the measured fatigue crack growth rates for both frequencies and discuss possible reasons for the discrepancies, if any, between your predictions and the experimentally determined growth rates.
Your boss has assigned you the job of designing a rapid-mix tank for the new water treatment plant for the town of Waffle. The design flow rate is 0.050 m^3/s. The average water temperature is 8 degrees celcius.
A concrete mix with a 3-inch slump, w/c ratio of 0.50, and sand with a fineness modulus of 2.4 contains 1700 lb/yd^3 of coarse aggregate. Compute the required weight of coarse aggregate per cubic yard.
Determine the magnitude of F2 which will cause the reaction Cy at the bearing C to beequal to zero. The bearings are in proper alignment and exertonly force reactions on the rod. Set F1 = 550 lb.
A stratified lake could be idealized as two layers: with 7.0 m of fresh water on top and 10.0 m of cold water (specific gravity = 1.02) on the bottom. What are the pressure heads at the interface and at the bottom of the lake, in terms of water col..
A simply supported beam is to span 15 feet. It will support a uniformly distributed load of 2 kips per linear foot over the full span and a concentrated load of 60 kips at midspan. Total deflection is not to exceed span/240.
Design a cord (design the constants k and ) so the cord stretches 2.5 times the unstretched length, and the acceleration of the jumper doesn't exceed 3g, and the cord has zero stiffness at the bottom of a 400ft drop.
Demonstrate the understanding of cement materials and identify characteristics, properties, specification and main applications of different types cement
This project concerns design of a one-story parking garage in a 90x120-foot land in a North Chicago suburb (Cook County). Cars will be using both the ground level and the roof. The suggested design for the roof is a series of simply-supported girder..
The entrance to Mt. Hood Meadows (elevation 3,075 ft at the point of crossing) is grade separated from Viking highway (elevation 3,050 ft at the point of crossing) and will have to be connected. The two roadways intersect at a right angle.
Determine (5) the maximum shear stress at failure Tao,max and (6) the angle of the plane on which Tao,max acts; calculate (7) the available shear stress on the plane.
What is the smallest diameter pipeline that may be used to carry 6.3 L/s (100 gpm) of water if the flow is to be laminar
For the loading sown, use double integration method to determine: the equation of the elastic curve for the cantilever beam, the deflection at the free end and the slope at the free end.
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