Homework Answers
(a)
The Young's modulus is the ratio of stress to strain.So we can write
(b) A yield strength is the material property defined as the stress at which a material begins to deform plastically.So from the figure we can say that the yield strength in this case is 330 x 106 N/m2 .
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The figure shows the stress-strain curve for a material. The scale of the stress axis is...
Stress-Strain Curve 39· Material Type (l ot J) 40 Modulus of Elasticity 41. Stress Axis 42....
Stress-Strain Curve 39· Material Type (l ot J) 40 Modulus of Elasticity 41. Stress Axis 42. Strain Axis G K l-ductile J-brittle 43.Yield Point 4Fracture Point 45. Ultimate Strength Bonus 2: If the force is removed when the material is at point F, what will happen to the material?
Problem No. 2 (Figure 2) (ksi) Figure 2. Upper scale Lower scale The stress-strain diagram of...
Problem No. 2 (Figure 2) (ksi) Figure 2. Upper scale Lower scale The stress-strain diagram of a mild-steel specimen is shown in the figure. The specimen has a diameter of 0.50-inch and gage length of 2-inch. Determine the following: (a) yield strength (oy); (b) ultimate strength (out); (c) Young's modulus (E); (d) modulus of resilience; (e) if the specimen is loaded to 105 ksi and then unloaded completely, determine the permanent increase in the gage length € (in/in) 0 0.04...
Figure 2.1 shows the stress strain curves for three materials. For these materials answer the fol...
Figure 2.1 shows the stress strain curves for three materials. For these materials answer the following questions, giving reasons for your selection a) Which material has the highest elastic modulus? b) Which material has the highest ductility? c) Which material has the highest toughness? d) Which material has the highest yield strength? e) Which material has the highest ultimate tensile strength? f State respectively which material behaves like a: i. Metal ii. Polymer iii. Ceramic Figure 2.1 (NB. The points...
A linear elastic material is subjected to differing strains. At a strain of 0.2%, the stress...
A linear elastic material is subjected to differing strains. At a strain of 0.2%, the stress is 36 MPa whereas at a strain of 0.75%, the stress is 128 MPa. a) (5 points) Determine the stress in this material at a strain of 0.58% (use linear interpolation) 5, 1. b) (5 points) what is the Young's modulus (elastic modulus) of this material? Use proper units mce
The figure below shows the flow curve for FCC single crystal material: 3. Stage 3 Stage...
The figure below shows the flow curve for FCC single crystal material: 3. Stage 3 Stage 2 Stage 1 3 2 1 Stage 0 Resolved shear strain Resolved shear stress (MPa) A. Explain the stages in this curve. B. Which stage can be described by the TEM image in this figure? C. If the yield strength was 4 MPa, calculate the orientation factor of this crystal.
The figure below shows the flow curve for FCC single crystal material: 3. Stage...
Considering the figure below, which curve shows the brittle material? stress strain Green ОО Red
Considering the figure below, which curve shows the brittle material? stress strain Green ОО Red
Assume that the stress strain curve of the material you selected is the one below. Using the upper scale from the curve...
Assume that the stress strain curve of the material you selected is the one below. Using the upper scale from the curve, what are the relevant mechanical properties? Identify 4 with the associated numerical values. 120- Upper scale 100- 80- Lower scale 40- 20- 0 0.025 0.050 0.075 0.100 0.125 0.150 0.175 0,002 0,004 0,006 0,008 0,010 0,012 0,014 0 Strain (in./in.) Stress (ksi)
Assume that the stress strain curve of the material you selected is the one below. Using...
manifactoring processes 1) Sketch Engineering stress vs. Engineering strain curve and True stress vs. true strain...
manifactoring processes 1) Sketch Engineering stress vs. Engineering strain curve and True stress vs. true strain curve from one uniaxial tension test for an engineering metals that shows power law strain hardening (e.g. aluminum or steel), within the same plot, and identify, from the curves, the material property parameters of: Yield strength (0.2% offset) Uniform engineering strain ultimate tensile strength (eng.) true stress and true strain at the onset of necking K and n from power-law fitting (the range of...
Question 1: The stress-strain diagram for a material is shown in figure. Find the following properties...
Question 1: The stress-strain diagram for a material is shown in figure. Find the following properties of the material. (a) Yield load if the diameter of specimen at yielding is 13mm. (b) Modulus of resilience (c) Elastic Strain Stress (MPa) CS Scanned with CamScanner 0.001 0.003 Strain
Considering the figure below, which curve shows the brittle material? stress - strain O Green Red...
Considering the figure below, which curve shows the brittle material? stress - strain O Green Red Question 6 5 pts MacBook Air 20 DOO F4 # - $ 4 کیا BOBB
Stress-Strain Curve 39· Material Type (l ot J) 40 Modulus of Elasticity 41. Stress Axis 42. Strain Axis G K l-ductile J-brittle 43.Yield Point 4Fracture Point 45. Ultimate Strength Bonus 2: If the force is removed when the material is at point F, what will happen to the material?
Problem No. 2 (Figure 2) (ksi) Figure 2. Upper scale Lower scale The stress-strain diagram of a mild-steel specimen is shown in the figure. The specimen has a diameter of 0.50-inch and gage length of 2-inch. Determine the following: (a) yield strength (oy); (b) ultimate strength (out); (c) Young's modulus (E); (d) modulus of resilience; (e) if the specimen is loaded to 105 ksi and then unloaded completely, determine the permanent increase in the gage length € (in/in) 0 0.04...
Figure 2.1 shows the stress strain curves for three materials. For these materials answer the following questions, giving reasons for your selection a) Which material has the highest elastic modulus? b) Which material has the highest ductility? c) Which material has the highest toughness? d) Which material has the highest yield strength? e) Which material has the highest ultimate tensile strength? f State respectively which material behaves like a: i. Metal ii. Polymer iii. Ceramic Figure 2.1 (NB. The points...
A linear elastic material is subjected to differing strains. At a strain of 0.2%, the stress is 36 MPa whereas at a strain of 0.75%, the stress is 128 MPa. a) (5 points) Determine the stress in this material at a strain of 0.58% (use linear interpolation) 5, 1. b) (5 points) what is the Young's modulus (elastic modulus) of this material? Use proper units mce
The figure below shows the flow curve for FCC single crystal material: 3. Stage 3 Stage 2 Stage 1 3 2 1 Stage 0 Resolved shear strain Resolved shear stress (MPa) A. Explain the stages in this curve. B. Which stage can be described by the TEM image in this figure? C. If the yield strength was 4 MPa, calculate the orientation factor of this crystal.
The figure below shows the flow curve for FCC single crystal material: 3. Stage...
Considering the figure below, which curve shows the brittle material? stress strain Green ОО Red
Assume that the stress strain curve of the material you selected is the one below. Using the upper scale from the curve, what are the relevant mechanical properties? Identify 4 with the associated numerical values. 120- Upper scale 100- 80- Lower scale 40- 20- 0 0.025 0.050 0.075 0.100 0.125 0.150 0.175 0,002 0,004 0,006 0,008 0,010 0,012 0,014 0 Strain (in./in.) Stress (ksi)
Assume that the stress strain curve of the material you selected is the one below. Using...
Question 1: The stress-strain diagram for a material is shown in figure. Find the following properties of the material. (a) Yield load if the diameter of specimen at yielding is 13mm. (b) Modulus of resilience (c) Elastic Strain Stress (MPa) CS Scanned with CamScanner 0.001 0.003 Strain
Considering the figure below, which curve shows the brittle material? stress - strain O Green Red Question 6 5 pts MacBook Air 20 DOO F4 # - $ 4 کیا BOBB
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