2. The stress for high strength alloys steel at which plastic deformation begins is 625 MPa, andthe modulus of elasticity is 705 GPa.(i)What is the maximum load that may be applied to a specimen with a cross-sectionalarea of 240 mm? without plastic deformation?(5 Marks)(ii) If the original specimen length is 300 mm, what is the maximum length to which itmay be stretched without causing plastic deformation?(5 Marks)

Answered: Image /qna-images/answer/f3ce50c2-789f-4aae-975b-a90b288888ef.jpg

Answered: The stress for high strength alloys…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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For a brass alloy, the stress at which plastic deformation begins is 345 MPa, and the modulus of elasticity is 103 GPa. Determine the following bläi 3 What is the maximum load that may (a) be applied to a specimen with a cross- sectional area of 130 mm2 without plastic deformation?(b) If the original specimen length is 76 mm, what is the maximum length to which it may be stretched without causing plastic ?deformation
For a brass alloy, the stress at which plastic deformation begins is 345 MPa, and the modulus of elasticity is 103 GPa. Determine the following (a) What is the maximum load that may be applied to a specimen with a cross: sectional area of 130 mm2 without plastic deformation?(b) If the original specimen erngth is 76 mm, what is the maximum length to which it may be stretched without causing plastic deformation?
The following data are obtained from a tensile test of a copper specimen. - The load at the yield point is 158 kN. - Length of the specimen is 26 mm. - The yield strength is 75 kN/mm?. - The percentage of elongation is 40 %. Determine the following (v) Final diameter if the percentage of reduction in area is 21 %. Final Area of the Specimen at Fracture (in mm) Final Diameter of the Specimen after Fracture (in mm)
Question 2 (a) The stress for low alloys steel at which plastic deformation begins is 550 MPa, and the modulus of elasticity is 610 GPa (i) Determine the maximum load that may be applied to a specimen with diameter is 30 mm without plastic deformation? (i) If the original specimen length is 100 mm, determine the maximum length to which it may be stretched without causing plastic deformation?
2) For a brass alloy, the stress at which plastic deformation begins is345 Mpa and the modulus of elasticity is 103GPa.a) What is the maximum load that can be applied to a specimen with area130mm² cross section without plastic deformation? b) If the original length of the specimen is 76 mm, what is themaximum length to which it can be stretched without causing deformationplastic?
3. For a brass alloy, the stress at which plastic deformation begins is 360 MPa, and the modulus of elasticity is 110 GPa. (a) What is the maximum load that may be applied to a specimen with a cross-section area of 150 mm2 without plastic deformation? (b) If the original specimen length is 100 mm, what is the maximum length to which it may be stretched without causing plastic deformation?
4. For a brass alloy, the stress at which plastic deformation begins is 345 MPa and the modulus of elasticity is 103 GPa. What is the maximum load that may be applied to a specimen with a cross-sectional area of 130 mm² without plastic deformation? b. If the original specimen length is 76 mm, what is the maximum length to which it may be stretched without causing plastic deformation?
The following data are obtained from a tensile test of a copper specimen. - The load at the yield point is 151 kN. - Length of the specimen is 23 mm. - The yield strength is 79 kN/mm?. - The percentage of elongation is 45 %. Determine the following (i) Diameter of the specimen, ii) Final length of the specimen, iii) Stress under an elastic load of 17 kN, iv) Young's Modulus if the elongation is 2.4 mm at 17 kN and (v) Final diameter if the percentage of reduction in area is 24 %. Solution Initial Cross-sectional Area (in mm²) The Diameter of the Specimen (in mm) Final Length of the Specimen (in mm) Stress at the elastic load (in N/mm?) Young's Modulus of the Specimen (in N/mm?)
The following data are obtained from a tensile test of a copper specimen. - The load at the yield point is 146 kN. - Length of the specimen is 25 mm. - The yield strength is 83 kN/mm?. - The percentage of elongation is 40 %. Determine the following (i) Diameter of the specimen, ii) Final length of the specimen, iii) Stress under an elastic load of 14 kN, iv) Young's Modulus if the elongation is 1.1 mm at 14 kN and (v) Final diameter if the percentage of reduction in area is 25 %. Solution Initial Cross-sectional Area (in mm?) The Diameter of the Specimen (in mm) Final Length of the Specimen (in mm) Stress at the elastic load (in N/mm2) Young's Modulus of the Specimen (in N/mm2) Final Area of the Specimen at Fracture (in mm) Final Diameter of the Specimen after Fracture (in mm)
The following data are obtained from a tensile test of a copper specimen. - The load at the yield point is 151 kN. - Length of the specimen is 23 mm. - The yield strength is 79 kN/mm?. - The percentage of elongation is 45 %. Determine the following (i) Diameter of the specimen, ii) Final length of the specimen, iii) Stress under an elastic load of 17 kN, iv) Young's Modulus if the elongation is 2.4 mm at 17 kN and (v) Final diameter if the percentage of reduction in area is 24 %.
Q21 is x10 s 15.0 brass alloy, the stress at which plastic deformation begins is 50,000 psi, and the modulus of elasticity What is the maximum load that can be applied to a specimen with a cross-sectional area of 0.2 in.² without plastic deformation? b) If the original specimen length is 3.0 in., what is the maximum length to which it can be stretched without causing plastic deformation? 3/A cylindrical specimen of a nickel alloy having an elastic modulus of 207 GPa and an original diameter o 0 nim experiences only elastic deformation when a tensile load of 8900 N is applied. Compute the maximur ength of the specimen before deformation if the maximum allowable clongation is 0.25 mm.
QUESTION ONE (a) Distinguish between physical and mechanical properties of materials. Give two examples of each. (b) Explain why in a stress versus strain curve, the plastic portion of the graph after necking tends to drop (ie the force drops) despite that the tension is increasing. (c) A tensile test uses a copper test specimen that has a gauge length of 80 mm and a di.ameter of 16 mm. During the test, the specimen yields under a load of 9,600 N. The corresponding gauge length is 80.24 mm. The maximum load reached is 148,000 N at a gauge length of 94.2 mm, while fracture happens at a load of 12,800 N and a gauge length of 102 6 mm Determine the following: (i) Modulus of elasticity E (ii) Yield strength Oy (iii) Fracture strength, ơt (iv) Tensile strength OTs. 1

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