Strength of Materials Quiz4

Strength of Materials Quiz4 - allowable stress of 6000 psi...

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Sheet1 Page 1 Strength of Materials Quizzes EGR 283 Quiz #4 Solutions All results must be given to the precision used in the textbook. Assume that the data are known to the same precision. Thus, when a value of 2 kips is given, it is assumed that it is known to 3 digits i.e., 2.00 kips. You may receive partial credit if you show your work (on the reverse). The units requested must be given with all answers. Print this page and write the answers in the blanks. Sign the statement at the bottom. Then submit the page before class on Monday. Please priint your name here: ___________________________________________________ 1. A shaft rotates at 450 rpm and delivers power of 35 hp. What torque acts on the shaft? Give your answer in kN-m.0.554 kN-m 2. Suppose the stepped shaft of Problem 3.89 (page 172) has an overall
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Unformatted text preview: allowable stress of 6000 psi with D = 2.5 and d = 1.25 inches. What must the maximum allowable stress at the surface of the smaller portion of the shaft be if the fillet radius is 0.3125 in?5000 psi 3. For Problem 4.2, assuming the outer diameter is 40 mm and the inner is 30 mm, determine the moment of inertia of the cross section about the neutral axis in mm4.8.59 x 104 mm4 4. The cross section of a beam is 140 mm x 140 mm. Under load, it is found that the normal stress due to bending is 40 MPa in tension on the bottom and 40 MPa in compression on the top. What is the bending moment in kN-m?18.29 kN-m 5. True or False? For a beam under pure bending, there are two curvatures. (circle one)True...
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