Question

A round, 2m long steel rod (1.5 cm in diameter) is loaded to 400 MPa. Compute the force applied and the deflection of the rod. 2. An aluminum bar that was 2 ft long initially and 1 in in diameter is stretched 1/8". Compute the strain, stress, and applied load. 3. Based on the fillet stress concentration charts, what is the stress concentration factor for a right angle? If a ductile metal (tensile strength of 400 MPa) structure is under an average stress of 100 MPa and has a 90° angle in it, should it fail? Why or why not? What if the material is brittle?

          A round, 2m long steel rod (1.5 cm in diameter) is loaded to 400 MPa. Compute the force applied and the deflection of the rod.

2. An aluminum bar that was 2 ft long initially and 1 in in diameter is stretched 1/8". Compute the strain, stress, and applied load.

3. Based on the fillet stress concentration charts, what is the stress concentration factor for a right angle? If a ductile metal (tensile strength of 400 MPa) structure is under an average stress of 100 MPa and has a 90° angle in it, should it fail? Why or why not? What if the material is brittle?

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1 a round 2m long steel rod 15 cm in diameter is loaded to 400mpa compute the force applied and the deflection of the rod 2 an aluminum bar that was 2 ft long initially and 1 in in diameter 11854

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University Physics with Modern Physics

Hugh D. Young 14th Edition

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Solved by Expert Sri K

06/11/2023

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A round, 2m long steel rod (1.5 cm in diameter) is loaded to 400MPa. Compute the force applied and the deflection of the rod. F = 400000 N = 400000 kgf = 40000 Nm = 400 MPa Show more…

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A round, 2m long steel rod (1.5 cm in diameter) is loaded to 400 MPa. Compute the force applied and the deflection of the rod. 2. An aluminum bar that was 2 ft long initially and 1 in in diameter is stretched 1/8". Compute the strain, stress, and applied load. 3. Based on the fillet stress concentration charts, what is the stress concentration factor for a right angle? If a ductile metal (tensile strength of 400 MPa) structure is under an average stress of 100 MPa and has a 90° angle in it, should it fail? Why or why not? What if the material is brittle?

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Transcript

00:01 Now solve this equation given that l is equal to 2 meter, d is equal to 1 .5 centimeter.

00:09 This is equal to 0 .015.

00:12 Esp is equal to 200 gpa.

00:18 Sigma stress is equal to 400 mpa.

00:25 Now force applied.

00:27 Force applied is equal to sigma multiply area.

00:32 This is equal to 400 multiply 10 to the power 6 multiply 5 by 4 multiply 0 .015 whole square.

00:43 Now solve this we will get force is equal to 7068 5 .835 newton.

00:52 Deflection, deflection fl divided by 8.

00:59 Now this is equal to 7068 5 .835 multiply 2 divided by 5 by 4 multiply 0 .015 whole square multiply 200 multiply 10 to the power 9.

01:19 Now solve this.

01:21 This is equal to 4 mm.

01:22 This is equal to 4 mm.

01:24 Now second now second one el is equal to 70 gpa.

01:32 This is equal to 1 .015 multiply 10 to the power 7 psi.

01:39 L is equal to 2 feet.

01:41 This is equal to 24 inch and delta l d is equal to 1 inch and given that delta l is equal to 1 divided by 8 inch.

01:54 Now strain is equal to delta l divided by l.

02:00 This is equal to 1 divided by 24...

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