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The stepped rod shown in sketch k is subjected to a tensile force that varies between 15,000 and 30,000 N. The rod has a machined surface finish everywhere except the shoulder area, where a grinding operation has been performed to improve the fatigue resistance of the rod. Using a 99% probability of survival, determine the safety factor for infinite life if the rod is made of AISI 1080 steel, quenched and tempered at 800C. Use the Goodman line. Does the part fail at the fillet? Explain.
The stepped rod shown in sketch k is subjected to a tensileforce that varies between 15,000 and 30,000 N. Therod has a machined surface finish everywhere except theshoulder area, where a grinding operation has been performedto ...

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A tension member in service has been inspected and a fatigue crack has been discovered as shown in sketch f. A proposed solution is to drill a hole at the tip of the crack, the intent being to reduce the stress concentration at the crack tip. The material is 30-mm-thick annealed AISI 1040 medium carbon steel, and was produced through forging. If the load is a completely reversing 15 kN and the original design is as shown,
A tension member in service has been inspected and afatigue crack has been discovered as shown in sketch f.A proposed solution is to drill a hole at the tip of thecrack, the intent being to reduce the ...

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Three charges of equal magnitude q reside at the corners of an equilateral triangle of side length a (Figure 5). a.) Find the magnitude and direction of the electric field at point P, midway between the negative charges, in terms ...

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Using both LRFD and ASD, select the most economical sections, with Fy =50 ksi, unless otherwise specified, and assuming full lateral bracing for the compression flanges. Working or service loads are given for each case, and beam weights are not included.
Using both LRFD and ASD, select the most economical sections, with Fy =50 ksi, unless otherwise specified, and assuming full lateral bracing for the compression flanges. Working or service loads are given for each case, and beam weights are not ...

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An air cycle refrigeration plant operates with a centrifugal compressor and an air turbine mounted coaxially such that the power output from the turbine contributes to the power required to drive the compressor. The temperature of the air at the ...

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Thirty horsepower is supplied to the 30in. sprocket by means of a chain drive as shown in Figure below. Twenty horsepower is taken off at the 24in. pulley which weighs 1000lb and 10hp is taken off at the 8in. crank. The force in the chain on the tight side is represented by T c ​ The tension in the slack side is so small that it can be neglected. The ratio of the tensions in the belt is 4:1. The shaft is rotating at 300rpm. The loads are applied with moderate shock, C m ​ =2 and C t ​ =1.5 determine the size of shaft necessary if S c ​ (allowable) 8000psi. It is assumed that the sprocket and pulley are keyed to the shaft.
Thirty horsepower is supplied to the 30in. sprocket by means of a chain drive as shown in Figure below. Twenty horsepower is taken off at the 24in. pulley which weighs 1000lb and 10hp is taken off at the 8in. crank. ...

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