The 50-mm-diameter cylinder is made from Am 1004- T61 magnesium and is placed in the clamp when the temperature is T₁ = 15°C. (Figure 1) Figure 100 mm 1 of 1 > 150 mm Part A If the two 304-stainless-steel carriage bolts of the clamp each have a diameter of 10 mm, and they hold the cylinder snug with negligible force against the rigid jaws, determine the temperature at which the average normal stress in either the magnesium o the steel first becomes 14.5 MPa. Express your answer to three significant figures and include the appropriate units. T₂= Value Submit μA Provide Feedback Request Answer Units Review ? Next >

The 50-mm-diameter cylinder is made from Am 1004- T61 magnesium and is placed in the clamp when the temperature is T₁ = 15°C. (Figure 1) Figure 100 mm 1 of 1 > 150 mm Part A If the two 304-stainless-steel carriage bolts of the clamp each have a diameter of 10 mm, and they hold the cylinder snug with negligible force against the rigid jaws, determine the temperature at which the average normal stress in either the magnesium o the steel first becomes 14.5 MPa. Express your answer to three significant figures and include the appropriate units. T₂= Value Submit μA Provide Feedback Request Answer Units Review ? Next >

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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The 50-mm-diameter cylinder is made from Am 1004-T61 magnesium and is placed in the clamp when the temperature is T₁ = 15°C. (Figure 1) Figure 100 mm 150 mm 1 of 1 > Part A If the two 304-stainless-steel carriage bolts of the clamp each have a diameter of 10 mm, and they hold the cylinder snug with negligible force against the rigid jaws, determine the temperature at which the average normal stress in either the magnesium or the steel first becomes 14.5 MPa Express your answer to three significant figures and include the appropriate units. ºμÀ T₂ = 150.54 Submit 6 Provide Feedback ➜ C Previous Answers Request Answer ? X Incorrect; Try Again; 5 attempts remaining Next >
50 mm PROBLEM 2.55 Brass 37.5 mm A brass link (E, = 105 GPa, a, = 20.9x10/°C) and a steel rod (E, = 200 GPa, a =11.7x10/°C) have the dimensions shown at a temperature of 20°C. The steel rod is cooled until it fits freely into the link. The temperature of the whole assembly is then raised to 45°C. Determine (a) the final stress in the steel rod, (b) the final length of the steel rod. 37.5 mm 0.12 mm -250 mm 30-mm diameter Steel A Section A-A 0, =-36.8 MPa L, = 250.147 mm %3D
16 Carbon nanotubes are one of the strongest materials known to engineers. They have an elastic modulus of 1.1 TPa (1TPa = 10¹2 Pa). If a carbon nanotube has a diameter of 15 nm determine the engineering stress, in GPa, sustained by the nanotube when subjected to a tensile load of 4 µN along the length of the tube. Assume that the entire cross-sectional area of the nanotube is load bearing. * = 3.14. Enter the answer rounded to one place after the decimal (xx.x). Do not enter the units. Note: This answer will be required in the next question so please note this down. Type your answer.... 17 Carbon nanotubes are one of the strongest materials known to engineers. They have an elastic modulus of 1.1 TPa (1TPa = 10¹2 Pa). Assume that the carbon nanotube is only deformed elastically under a load of 4 uN. The carbon nanotube has a length of 10 pm. what is the elongation of carbon nanotube in nanometres. Use the engineering stress from previous Q16. Enter the rounded integer answer without…
A rod, 45 mm in diameter and made of Red Brass, is fixed to the wall at A. There is a gap of 1.5 mm from the free end B to another wall. You are required to determine the change in temperature (AT) required to cause the rod to buckle. Assume that B acts as a pin support when contact is made. A B 1.5 m 1.5 mm
At a temperature of 20 °C there is a gap ∆ = 0.2 mm between the lower end of the brass bar and the slab rigid suspended from the two steel bars. Neglecting the mass of the slab, determine the stress in each bar when the temperature of the assembly rises to 100°C Answer: σsteel = 15.462MPa (t), σbronze= 20.615MPa(c),
I Review Part A The 50-mm-diameter cylinder is made from Am 1004-T61 magnesium and is placed in the clamp when the temperature is T = 15°C. (Figure 1) If the two 304-stainless-steel carriage bolts of the clamp each have a diameter of 10 mm, and they hold the cylinder snug with negligible force against the rigid jaws, determine the temperature at which the average normal stress in either the magnesium or the steel first becomes 15.0 MPa Express your answer to three significant figures and include the appropriate units. HA T2 = Value Units Figure 100 mm 150 mm
Review Part A The 50-mm-diameter cylinder is made from Am 1004-T61 magnesium and is placed in the clamp when the temperature is T = 20°C. (Figure 1) If the 304-stainless-steel carriage bolts of the clamp each have a diameter of 12 mm, and they hold the cylinder snug with negligible force against the rigid jaws, determine the force in the cylinder when the temperature rises to T2 = 130°C. Express your answer to three significant figures and include the appropriate units. HA F = 1301.4 Figure 1 of 1 Submit Previous Answers Request Answer 100 mm 150 mm Provide Feedback Next >
The aluminum shell is fully bonded to the brass core and the assembly is unstressed at a temperature of 15°C. Considering only axial defor-mations, determine the stress in the aluminum when the temperature reaches 195°C.
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
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).
The rod is made of A-36 steel and has a diameter of 0.25in. If the rod is 4ft long when the springs are compressed 0.5in and the temperature of the rod is T=40°F, determine the force in the rod when its temperature is T=160°F. k= 1000 lb/in. ww 4 ft k = 1000 lb/in. WW
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 elastic modulus 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 %3D that will cause the rod to buckle. A L B Answer: AT =