Name: Surname: Student ID: ME 216 MECHANICS OF MATERIALS QUIZ # 2 QUESTION σ (MPa) 490 420 350 280 210 140 70 25.03.2019 (mm/mm) 0 0.0008.002 0.004 0.006 0.008 0.010 A tension test was performed on a 7075-T6 aluminum tensile test specimen. The results are given in the figure above. According to this data, find: a. Young modulus of the material, b. Yield stress of the material (be careful, there is no any sharp yield point), c. Modulus of the resilience, d. If the material is stressed up to 420 MPa stress, what is the permanent elongation remained in the material if its length is 90 mm. e. For a 20 mm diameter bar made up of from the same material, what is the maximum load that can be applied without plastic deformation. ANSWER E=D ٤ E- 70.106 6= 70 MPa at ε = 0,0009 = 77,776 Pa 0,000 9

Name: Surname: Student ID: ME 216 MECHANICS OF MATERIALS QUIZ # 2 QUESTION σ (MPa) 490 420 350 280 210 140 70 25.03.2019 (mm/mm) 0 0.0008.002 0.004 0.006 0.008 0.010 A tension test was performed on a 7075-T6 aluminum tensile test specimen. The results are given in the figure above. According to this data, find: a. Young modulus of the material, b. Yield stress of the material (be careful, there is no any sharp yield point), c. Modulus of the resilience, d. If the material is stressed up to 420 MPa stress, what is the permanent elongation remained in the material if its length is 90 mm. e. For a 20 mm diameter bar made up of from the same material, what is the maximum load that can be applied without plastic deformation. ANSWER E=D ٤ E- 70.106 6= 70 MPa at ε = 0,0009 = 77,776 Pa 0,000 9

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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