At a temperature of 11°C, a 2-mm gap exists between two polymer bars and a rigid support, as shown in the figure. Bars (1) and (2)have coefficients of thermal expansion of a₁ = 122 x 10-6/°C and a2 = 80 x 10-6/°C, respectively. The supports at A and C are rigid.Determine the lowest temperature at which the 2-mm gap is closed. Assume L₁= 580 mm and L₂ = 320 mm.(1)Gap gAnswer: T = iSave for LaterL₁eTextbook and MediaBL2°C(2)CAttempts: 0 of 5 used Submit Answer

Answered: Image /qna-images/answer/1f04d3f3-cb7a-4bc7-aeeb-d17fbc35bd32.jpg

Answered: At a temperature of 11°C, a 2-mm gap…

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

See similar textbooks

Similar questions

A 5-m rod having a uniform cross-sectional area of 1000 sq. mm. is secured between two walls5 meters apart. The load on the rod is zero at 27 °C. E = 200 GPa, α = 11.25x10-6 m/m-°C. Whenthe temperature rises to 57°C: What is the stress in the rod assuming that the walls are rigid and stress (in the rod) if the walls spring together with a total distance of 0.5 mm? pls box final answer
A 5-m rod having a uniform cross-sectional area of 1000 sq.mm. is secured between two walls 5 meters apart. The load on the rod is zero at 27 °C. E = 200 GPa, α = 11.25x10-6 m/m-°C. When the temperature rises to 57°C: What is the stress in the rod if the walls spring together a total distance of 0.5 mm
The bronze bar 3.42 m long with a cross-sectional area of 627 mm2 is placed between two rigid walls. At a temperature of -14 °C, there is a gap Δ = 2.36 mm, as shown in the figure. Find the temperature at which the compressive stress in the bar will be 34.22 MPa. Use α = 18 × 10-6 /°C and E = 80.32 GPa. Round off your answer to two decimal places.
A thermo gate consist of an aluminum plate AB and a magnesium plate CD, each having a width of 15. 1mm and fixed supported at their ends as shown in Figure Q2. If the gap between them is 1.5 mm when temperature is T1=25.00| (a) Determine the temperature, T2 required to just close the gap. (b) Determine the axial force in each plate when the temperature T2 becomes 100°C. 10 mm 10 mm B C 600 mm 400 mm
The stress-strain curve of cellulose acetate at 25°C is shown below. Draw the curves at 0°C and 60°C
Problem 2. A block of cast iron was wrapped in the thin aluminum foil as shown on the figure. At room temperature there is no stress on the foil. The whole system is then immersed in liquid nitrogen at -196°C. Find the stress on the aluminum foil. Is the foil going to deform permanently? Is it going to break? Stress [MPa] 350 300 250 200 150 100 50 0 0 alu alloy 5083-H34 0.005 0.01 0.015 0.02 Strain Aluminum foil 5 µm thick, this is a continuous strip with the ends welded together Cast iron 20 mm thick a aluminum = 2.4 105 K-¹, Stress MPa 400 300 200 100 a iron 1.2 105 K-1 ↑ 11 0 0 0.05 0.1 0.15 0.2 0.25 Strain Fig. 2. Stress-strain diagrams for aluminum. Left: Low strain region. Right: Full strain range. Hint: you can get the Young's modulus, proportions limit (elastic limit), and break point from the graphs.
A uniform bar with an area of 0.25 in2 is pulled between two points. The tensile force at a temperature of 21.11°C is 1200 lb. What will be the stress at -17.78°C? At what temperature will the stress be zero? Assume α = 5 × 10-6 in/(in·°F) and E = 29 × 106 psi.
By the equipment as shown in the figure, temperature can be measured. The bar AB and CD are made from aluminum and titanium. The coefficients of thermal expansion are 23.6x106 1/K and 8.2x10-6 1/k. Obtain the relationship between the temperature and the vertical displacement at the point E. 6 mm 72 mm 36 mm D
One spring is placed inside the other, not touching each other, and compressed between a pair of parallel plates until the distance between the plates is 40 mm. Make a neat detailed sketch of the spring and plate assembly. If G = 83 GPa for both springs, calculate the following: 1. The force applied to the spring assembly. 2. The shear stress induced in each spring. 3. The total strain energy stored in the spring assembly. 4. The stiffness of each spring. 5. The equivalent stiffness of a single spring that can be substituted in place of these springs.
8 A circular metallic rod of length 250 mm is placed between two rigid immovable walls as shown in the figure. The rod is perfect contact with the wall on the left side and there is a gap of 0.2 mm between the rod and the wall on the right side. If the temperature of the rod is increased by 200°C, the axial stress developed in the rod is, MPa. Young's modulus of the material of the rod is 200 GPa and the coefficient of thermal expansion is 10-5 per°C. 250 mm 0.2 mm
Bar A has a cross-sectional area of 0.04 m2, modulus of elasticity E = 70 GPa, and coefficient of thermal expansion α = 14E‐6 C-1. Bar B has a cross sectional area of 0.01 m2, modulus of elasticity E = 120 GPa, and coefficient of thermal expansion α = 16E‐6 C-1. There is a gap b = 0.4 mm between the ends of the bars. What minimum increase in the temperature of the bars above their initial temperature T is necessary to cause them to come into contact?
(b) shown in Figure 1(b). The tube and the bar are of the same initial length. The combination is compressed between two rigid parallel plates by a force of 500 kN. The diameter of the steel bar is 40 mm, and the inside and outside diameters of the alloy tube are 60 mm and 100 mm respectively. The Young's moduli for steel and aluminium alloy respectively are Est = 200 GNM2, EAI = 70 GNm-2. An assembly of a steel bar enclosed within an aluminium alloy tube is %3D %3D Find the stresses generated in the steel bar and the aluminium alloy tube. 500 kN Rigid plate Aluminium tube Steel bar Rigid plate 500 kN Figure 1(b)

SEE MORE QUESTIONS

Recommended textbooks for you

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Control Systems Engineering

Mechanical Engineering

ISBN:

9781118170519

Author:

Norman S. Nise

Publisher:

WILEY

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

Engineering Mechanics: Statics

Mechanical Engineering

ISBN:

9781118807330

Author:

James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher:

WILEY

SEE MORE TEXTBOOKS