How does the resilience of this material compare to its toughness? Calculate the numerical value for the toughness of a metal that exhibits all of the followingcharacteristics:• Young's Modulus is 120 GPa• The deformation is perfectly elastic up to yieldSubsequent deformation is entirely plastic until the sample breaksThe plastic deformation is described by the equation o = Cɛ" with C = 1600 MPa, n = 0.2The sample breaks at an engineering strain of 0.6

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Answered: How does the resilience of this…

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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أنت الآن 27a) Answer the following questions by referring the given figure: (5 Marks) (0.5 material specification + 0.5 mark reason) S E (%) 1. Which material is less brittle? Give reason? 2. Identify the material with less toughness. Give reason 3. Which material having less stiffness? Why? 4. Which material is having low hardness? Why? 5. Which material will experience more reduction in area? Why? O (MPa)
Why are pairs of materials more likely to experience thermal stress problems when they represent two different material classes?
Manufacturing Processes What are the different types of heat treatments? Write a detailed note on each type. How can Mechanical Properties be improved using each heat treatment?
I. List the importance of the impact test and limitations. II. Which material (i.e., C1045-CF, Cast Iron, AL7075-T6) was more ductile? Explain the effect of carbon content and finishing process on ductility. II. How did temperature affect the toughness of the specimens? IV. Based on these results, which material would be better to use for constructing an earthquake resistant structure? Explain. V. The following picture shows Charpy fracture surfaces of a material with different initial temperatures, after testing. Which of these figures, i.e., (a) to (e), is related to the lowest temperature? Explain. (d)
If you have a material that is initially hard and strong, would you expect it to cyclically harden or soften? What would be a way of characterizing how strong it must be initially to make your answer a bit more quantitative?
What is the advantage of nitriding? Select all correct answers. Some complex components can be nitride without difficulty. Better wear resistance. Better fatigue resistance. The cheapest method of case hardening. What is the correct definition of plastic deformation? The behavior of a material when its size changes by the addition of heat. The behavior of a material that deforms under load and returns to its original shape when the load is removed. Deformation caused by cleavage, where the material is actually pulled apart across atomic planes within the crystals or along the grain boundaries. The behavior of a material that deforms under load and does not fully return to its original shape when the load is removed.
(c) What is the difference between Yield strength and Ultimate strength? Explain these terms with the help of a neat curve for any appropriate material.
Considering the stress-strain relationship, develop the following questions: (a) Sketch a schematic conventional stress-strain diagram, indicating the regions present in the diagram and the points that represent properties of both the elastic and plastic behavior and explain these properties. (b) What distinguishes the diagram in question a) from an actual stress-strain diagram? (c) What differentiates a brittle material and a ductile material, and how this will influence their respective stress-strain diagrams
Describe the behavior of tested materials (mild steel and aluminium) as it responds to increasing load, in tensile test experiment.
How can we prevent fatigue in the material?

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