1- Where the Hook's law state in elastic limit or plastic limit? 2- Ductile materials elongate > 3- Give two example of ferrous metal. 4- Mechanical properties of metals are those properties which completely define its behavior under the action of.. 5- What is the resilience measure? 6- In shear stress and strain, a body is subjected to two equal and opposite forces, acting...across the resisting section. 7- The malleability depends upon the 8- Can we consider (avoids the production delays) as advantage of good? 9- Why the machining operating performed? 10- Stress is defined as the internal resistance set up by the molecules of a material to resist.. application of external forces. due to

1- Where the Hook's law state in elastic limit or plastic limit? 2- Ductile materials elongate > 3- Give two example of ferrous metal. 4- Mechanical properties of metals are those properties which completely define its behavior under the action of.. 5- What is the resilience measure? 6- In shear stress and strain, a body is subjected to two equal and opposite forces, acting...across the resisting section. 7- The malleability depends upon the 8- Can we consider (avoids the production delays) as advantage of good? 9- Why the machining operating performed? 10- Stress is defined as the internal resistance set up by the molecules of a material to resist.. application of external forces. due to

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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Which one(s) of the following about G, shear modulus of elasticity of a material are correct? select all which are correct. G is also called the modules of rigidity. G is related to the modulus of elasticity E and Poisson’s ratio . G is usually smaller than Young's modulus E for the same material. G is the ratio of shear stress to shear strain when the material's proportional limit in shear has not been exceeded.
Given: Stress strain curve of 10 mm diameter and 1 m long ductile stainless-steel rod. 900 800 700 600 500 Mild 400 Stainless 300 200 - 100 0.1 0.2 0.3 0.4 Strain 0.5 0.6 0.7 Draw stress-strain curve for compression here 1. Label all points of significance on the stress strain curve 2. Draw the stress-strain curve for the rod in compression and label all points of significance. 3. What is the Young's modulus in tension? Assume .001 strain at 500 MPa 4. What is its Youngʻs modulus in compression? 5. What is the tensile yield strength of this rod using the 0.2% offset criteria? 6. What is the compressive yield strength of the rod? 7. What is force required to yield the rod?. Show calculation: 8. What is the UTS of this rod?. 9. What is the force required to break the rod? Show calculation: 10. What will be UCS of the rod? Stress (MPa)
Sketch a representative stress-strain digrama for a ductile material showing the following on it (label the axis and provid units). 1- YIELD STRENGTH. 2- TENSILE STRENGTH. 3- FRACTURE POINT. 4- HARDENING PART. 5- SOFTENING PART. 6- A METHOD TO CALCULATE THE STIFFNESS. 7- A METHOD TO CALCULATE THE DUCTILITY.
2.33. AISI 403 stainless steel has a fracture toughness K1c=77 MPa /m and a uni- axial yield stress Sy = 690 MPa. If a component contains a random distribution of through cracks up to 1 mm in length, determine whether it will exhibit ductile or brittle behaviour in tension.
Modulus of rigidity is defined as the: Select one: a. Area under the elastic zone of shear stress-strain diagram b. Slope of straight line in elastic zone of shear stress-strain diagram c. Slope of straight line in elastic zone of normal stress-strain diagram
1. A 0.015 meter diameter bar of steel is stress tested and the following stress-strain curve is produced Stress (psix 10 60 50 8 20 10 1 MPa 300 100 psi (x 10%) 50 200-30 OL 40- 20- 10 0.05 0.005 1 L 0.010 0.10 Strain a. What is the ultimate tensile strength (MPa)? d. What is the yield strength(MPa)? 0.15 c. What is the percent plastic elongation at the time of fracture? e. What is the Modulus of Elasticity (GPa)? 400 300 200 Stress (MPa) b. What is the greatest load that can be place on this bar before failure(N)? 100 10 0.20
In stress and strain diagram for a perfectly ductile material, the yield strength, and ultimate tensile strength are well defined Select one: O True O False
Quèstion 3 4 p From the following figure shows the tensile stress- strain curve for a plain-carbon steel. What is its modulus of elasticity? 600 MPa 600r 10 psi 50 60 400 400 40 20 100 0.05 0.10 0.15 Stain O A. 320 GPa O B. 500 GPa OC.400 GPa O D.215 GPa Sem (MP
The figure below shows the tensile engineering stress-strain behavior for a steel alloy. (a) What is the modulus of elasticity? (b) What is the yield strength at a strain offset of 0.002? (c) What is the tensile strength? Stress (MPa) 600 500 400 300 200 100 T I 0.00 Stress (MPa) 0.04 500 400 300 200 100 0.000 0.08 0.002 Strain 0.004 Strain 0.12 I 0.006 0.16 0.20 In the previous problem, A load of 85,000 N (19,100 lbf) is applied to a cylindrical specimen of the steel alloy that has a cross-sectional diameter of 15 mm (0.59 in.). (a) Will the specimen experience elastic and/or plastic deformation? Why? (b) If the original specimen length is 250 mm (10 in.), how much will it increase in length when this load is applied?
Q.3. A cylindrical specimen of cold-worked Brass has a tensile strength of 500 MPa. If the specimen remained cylindrical during deformation and its original radius was 10.6 mm, determine its radius after deformation. The dependence of tensile strength on percent cold work is shown in the following Figure. 140 900 1040 Steel 120 800 700 100 600 Brass -80 500 -60 400 Copper 300 -40 200 10 20 30 40 50 60 70 Percent cold work Tensile strength (MPa)
As Fast As you can Please mak sure the answer is correct 100% Please match the following to the appropriate areas or sublocations illustrated on the steel stress-strain curve shown below: (ultimate tensile stress- yield stress - repture stress) (4) The maximum stress point on the stress strain curve. (2) The point where the proportional limit ends and the moment the elastic limit of the specimen is reached, the specimen will return to its original state after the loading is removed. Typically occurs before the steel specimen starts to plastically yield. (5) The point at which the steel specimens has underwent necking and breaks. This typically occurs after the maximum stress is reached during the experiment.
2) Use the engineering stress strain diagram provided below to answer parts (A) to (H) below (the stress-strain diagram has already been drawn for you): stress strain diagram 400 350 0 300 0 250 0 200 0 150.0 100.0 50.0 00 0 05 01 0. 15 strain A. Determine the tensile strength of this alloy. B. show the clastic, plastic and total strain on the diagram stress (Mpa)