5. A force of 20,000 N will cause a 1 cm x 1 cm bar of magnesium to stretch from 10 cm to10.045 cm. Calculate the modulus of elasticity, both in GPa and psi.

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Answered: 5. A force of 20,000 N will cause a 1…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Problem 1.1MA

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The error in a measurement due to strain when using a tape measure depends on the material that it is made of. For a tape with a cross section of 10 mm by 0.7 mm, calculate how much error is introduced in inches into the measurement at a 300 ft length if the tape is pulled with 80 N and if the tape is made of: a) mild steel (E = 30 x 10^6 psi), b) polycrystalline aluminum (E = 10 x 10^6 psi) c) fiberglass composite (E = 3.5 x 10^6 psi in the long direction)
When a tensile force is applied to a material, the maximum stress that material can take before it is broken is 15 MPa. The same material’s modulus of elasticity is 4000 GPa a) If the original diameter of the material is 2cm, calculate the maximum load that the material can hold. b) If the initial length of the specimen is 15 cm, calculate the maximum length of the material before it is broken.

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5. A force of 20,000 N will cause a 1 cm x 1 cm bar of magnesium to stretch from 10 cm to 10.045 cm. Calculate the modulus of elasticity, both in GPa and psi.