2) Which of the following pairs are NOTcorrectly matched?O Macro stresses - Large scale and may bedeveloped by inhomogeneous plasticdeformationMacro stresses - From external loading, bynon-uniform heatingO Micro-stresses - Local small-scale internalstresses which arise due to arise due toheterogeneities i.e. due to differences inelastic modulus, co-efficient of expansionO Micro-stresses - Arise due toheterogeneities i.e. due to differences inelastic modulus, co-efficient of expansion

Answered: 2) Which of the following pairs are NOT…

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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Problem 2 The experimental set-up depicted in fig. 2 is aimed at studying the behavior of materials under complex stress states. A thin-walled pressure vessel of radius R = 11 mm and thickness t = 2.0 mm is subjected to an inter- nal pressure pi. At the same time, a normal force, N, and a torque, Q, are applied to the sample. In a specific experiment, the applied normal force is N = 16 kN and Figure 2: Pressure vessel subjected to the internal pressure p; = 20 MPa. The applied torque internal pressure, external torque and is slowly increased. The first permanent deformations are axial force. observed at the outer surface of the sample when Q = 120 N-m. (1) Find the yield stress for the material if it is assumed to follow von Mises' yield criterion. (2) Find the yield stress for the material if it is assumed to follow Tresca's yield criterion. (3) 2R P. Based on von Mises' yield criterion, find and plot the yield surface in the space defined by the three loading components, the internal…
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Define the term stress trajectory?
QUESTION 15 A bimetallic bar is made of two equal length steel and brass bars of same width firmly bonded together. The cross-sectional area of the brass bar is twice that of the steel bar. The Young's modulus of steel is twice that of brass. The coefficient of linear expansion of brass is twice that of steel. When the compound bar is subjected to a temperature rise of 50°C, what is the ratio of stress generated in steel to stress generated in brass? Note: Please study lecture slides and tutorial problem on thermal stress - strain O a. 1:(-2) O b. 1 : (-1) C. 2: (-1) O d.4:(-1) QUESTION 16
How can I solve for the %0.2 offset strain and the calculated stress? Original diameter : 6mm Original length : 30mm Fracture diameter : 4.54mm
The engineering stress-strain curve below was obtained for a precipitation hardened Aluminum alloy. What is the approximate Yield Strength for this alloy in psi? Engineering Stress Based on Original Area (psi) 50,000 45,000 40,000 35,000 30,000 25,000 20,000 15,000 10,000 5,000 0 O 0.02 0.04 0.06 Aluminum 6061-T6 0.08 0.1 0.12 Engineering Strain (in/in) 0.14 X 0.16 0.18
Q1/A structural part is 1-meter-long and subjected to a 50 KN load in which this part must be deformed elastically without experiencing any permanent deformation. If you know that part is made of steel, brass, aluminum, and Titanium alloys and the yield strengths and densities of these alloys are: 860 MPa, 7.9 g/cm³; 415 MPa, 8.5g/cm³; 310 MPa, 2.7 g/cm³; and 550 MPa, 4.5 g/cm³ respectively. Based on these criteria, rank the alloys from the heaviest to the lightest in weight.
8. A cylindrical bar of steel with a diameter of 10 mm is deformed elastically by applying a force along the bar axis. Determine the force that produces an elastic reduction in diameter of 3 X 10-³ mm. You may use material properties given in Table 6.1 below. Table 6.1 Room-Temperature Elastic and Shear Moduli and Poisson's Ratio for Various Metal Alloys Metal Alloy Aluminum Brass Copper Magnesium Nickel Steel Titanium Tungsten GPa 69 97 110 45 207 207 107 407 Modulus of Elasticity 10 psi 10 14 16 6.5 30 30 15.5 59 Shear Modulus GPa 25 37 46 17 76 83 45 160 10° psi 3.6 5.4 6.7 2.5 11.0 12.0 6.5 23.2 Poisson's Ratio 0.33 0.34 0.34 0.29 0.31 0.30 0.34 0.28
Estimate the Brinell and Rockwell hardness for the steel alloy for which the stress–strain behavior is shown in Figure 6.22.
Elastic Properties of Materials 4. A cylindrical bar of steel 10 mm (0.4 in.) in diameter is to be deformed elastically by application of a force along the bar axis. Using the data in Table given below, determine the force that will produce an elastic reduction of 3 × 10¯³mm (1.2 × 10-4 in.) in the diameter. Metal Alloy Aluminum Brass Copper Magnesium Nickel Steel Titanium Tungsten Modulus of Elasticity GPa 69 97 110 45 207 207 107 407 106 psi 10 14 16 6.5 30 30 15.5 59 Shear Modulus GPa 25 37 46 17 76 83 45 160 106 psi 3.6 5.4 6.7 2.5 11.0 12.0 6.5 23.2 Poisson's Ratio 0.33 0.34 0.34 0.29 0.31 0.30 0.34 0.28
1. For the stress-strain curve shown below, please estimate the properties indicated. (a) Fracture Strain Please do your work on a separate sheet of paper, and put your answers in the boxes on the right. Be sure to include the proper symbol and units. Stress Strain 70 60 50 Stress (ksi) 240 30 20 10 70 0 0.000 60 50 Stress (ksi) 40 20 10 KULL 0 0.000 0.010 0.050 0.100 Strain (in/in) Stress Strain 0.020 0.030 Strain (in/in) 0.040 0.150 0.050 (b) Ultimate Tensile Stress (c) Fracture Stress (d) Proportional Limit (e) Elastic Modulus (1) Yield Stress (g) Tensile Toughness (Modulus of Toughness) (h) Modulus of Resilience
The fluctuating stresses listed in the table are found at a critical location of a component made of steel with Se = 40 ksi, Sy = 80 ksi, Sut = 110 ksi and f= 0.87. These stresses are applied on the part within 10 s. What is the accumulative damage of this part? What is the life of the part in hours if this stress pattern continues to repeat for the remained of the part's life? Use Goodman criterion and Miner's rule in your solution. Loading order |Omin o max |Number of cycles -20 30 -10 50 1 3. -30 30 1

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