A solid 0.48-in.-diameter cold-rolled steel rod is pinned to fixed supports at A and B. The length of the rod is L = 20 in., its elasticmodulus is E = 30000 ksi, and its coefficient of thermal expansion is a = 7.2 x 10-6 in./in./°F. Determine the temperature increase AT%3D%3Dthat will cause the rod to buckle.ALBAnswer: AT =

Given, Diameter of rod = d = 0.48 in Length of rod = L = 20 in Elastic modulus = E = 30,000 ksi = 30…

Answered: A solid 0.48-in.-diameter cold-rolled…

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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A solid 0.25-in.-diameter cold-rolled steel rod is pinned to fixed supports at A and B. The length of the rod is L = 25 in., its elastic modulus is E = 32000 ksi, and its coefficient of thermal expansion is a = 6.5 x 10-6 in./in./°F. Determine the temperature increase AT that will cause the rod to buckle. P L B Answer: AT = i O
A steel rod is stretched between two rigid walls and carries a tensile load of 5000 N at 20°C. If the allowable stress is not to exceed 130 MN/m² at -20 °C, what is the minimum diameter of the rod? Assume k = 11.7 µm/(m-°C); E = 200 Gpa A. 10.22 mm B. 11.22 mm C. 12.22 mm D. 13.22 mm Please solve the Problem elaborately and Refer Machine Elements and Stresses Equations from the figures or use other shortcut Methods you have or you may Solve both or in more different methods the better ?. Your solution will be use as reference for my Future Board Exam preparation/review/study. Thank you so much dear your work will be appreciated much and rated excellently.
The rigid bar AC is supported by two axial bars (1) and (2). Both axial bars are made of bronze [E = 100 GPa; a = 18 × 10-6 mm/mm/ °C). The cross-sectional area of bar (1) is A1 = 184 mm2 and the cross-sectional area of bar (2) is A2 = 380 mm2. After load P has been applied and the temperature of the entire assembly has increased by 38°C, the total strain in bar (2) is measured as 1240 µɛ (elongation). Assume L1 = 1290 mm, a = 590 mm, b = 820 mm, and L2 = 2000 mm. Determine: (a) the magnitude of load P. (b) the vertical displacement of pin A. L2 (1) L1 B a P Answers: (a) The magnitude of P = i kN. (b) The vertical displacement of pin A = i mm (down).

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