Draw an engineering stress-strain curve for a metal and explain the parameters obtained from this curve.
Q: Which material/metal is the stiffest based on the following data provided and why?
A: Concept: 1) Stiffness is ability of material to resist deformation against applied load. 2) For the…
Q: Explain the differences between a ductile material and brittle material. Also, draw their…
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Q: Explain EXTERNAL WORK AND STRAIN ENERGY?
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Q: What is the importance of knowing the Mechanical Properties of a certain kind of Metal? enumerate
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Q: Explain ELASTIC STRAIN ENERGY FOR VARIOUS TYPES OF LOADING?
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Q: Draw a neat diagram of the relationship between fatigue stress and the number of loading cycles and…
A: Need to draw- diagram of the relationship between fatigue stress and the number of loading cycles
Q: What type of behaviour is observed from these stress-strain curves?
A: Consider the diagram shown below for the stress-strain curve. P: proportional limit Y: yield point…
Q: give an example proving that most materials exhibit both ductile andbrittle behavior?
A: As the temperature of the material decreases the ductile material loses its ductility and brittles…
Q: In a typical engineering stress-strain diagram, stress keeps on increasing after yield point due to…
A: Stress Strain Curve is a graphical representation of the behaviour of a material when a load or…
Q: A paper clip is made of wire 0.7 mm in diameter. If the original material from which the wire is…
A: Given data Where ‘f’ and ‘i’ denotes the final and initial conditions
Q: Why is fatigue generally less of a problem with ceramics and glasses than with metals and polymers?
A: Fatigue is defined as a mechanical failure in which material is failed under its yielding strength.…
Q: 7) Explain the concept “wide spread fatigue damage”, its origin and consequences. Give an example of…
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Q: Answer in a brief and concise essay. Why do we need to study the mechanical properties of a metal?
A: Study of mechanical properties of metals is a must for technological advancement. Mechanical…
Q: A material has a strength coefficient of 150,000 psi. At the onset of plastic deformation, the…
A: The general stress-strain curve is shown below: The engineering strain and true strains are related…
Q: Draw a stress-strain curve for a low carbon steel and explain important points and regions in…
A: Given Material Low Carbon Steel Find Stress-strain curve
Q: What is fatigue loading? Explain why it is dangerous.
A: The initiation and propagation of the crack in a material due to cyclic loading is called as…
Q: What engineering application can we use nonferrous metal? Explain the type of materials that you use…
A: The materials which doesn't contain iron as it's major constituent are generally known as non…
Q: b. A paper clip is made of wire 0.4 mm in diameter. If the original material from which the wire is…
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Q: Sketch a persistent slip band, define what it is, and explain its role in fatigue.
A: Sketch of Persistent slip band:
Q: Explain the effect of cold work on mechanical properties of metals.
A: Cold working process on mechanical properties of metals.
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Q: Discuss the trend for the hardness number of each metal with different indentation locations and…
A: The indentation hardness testing is probably the most using method of all testing methods used to…
Q: For the same bar, if the engineering strains are 0.05 and 0.10 at engineering stresses of 200 and…
A: Given data: σ1=200 MPaσ2=220 MPae1=0.05e2=0.1
Q: 2) a) Draw a stress-strain curve for a low carbon steel and an aluminum after tensile test. Show…
A: The stress strain curve of low carbon steel and aluminium can be drawn as below, Here, x-axis and…
Q: Would you suggest conducting Rockwell-Type hardness tests on ceramic or polymeric materials? Why or…
A: Rockwell - Type are not suitable for ceramic materials.
Q: List the very basic mechanical properties of materials, and briefly explain how to measure.
A:
Q: 6. How do you increase the hardness of components being made from 0.8% carbon steel? Explain the…
A: We can increase the hardness of low carbon steel by the carburizing process.
Q: Give some examples of brittle materials?
A: Brittle material is a kind of material in which breakdown occurs under very small tensile loads.…
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A: Given Data D=0.2 in Yield strength=35000 psi
Q: What is a bone stress fracture, and how does it relate to the content of this chapter?
A: Given Bone stress To find Definition Importance
Q: For a bronze alloy, the stress at which plastic deformation begins is 267 MPa and the modulus of…
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Q: explain in no more than 5 sentences why metals bend but ceramic breaks when applied with a certain…
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Q: What is “Necking”? How does it lead to reduction in engineering stress as true stress increases
A: The necking is defined as “the large local reduction in the cross sectional area occurs in the…
Q: A metal wire of diameter 1.2 mm is used to carry a load of 1100 N. If the material of which the wire…
A:
Q: 2. If a sample has a high modulus of elasticity, will the material exhibit a high degree of…
A: Dear student, we are suppose to solve only one question. Please post other question as a separate…
Q: Describe the nature of the load and strength distributions in four practical engineering situations…
A:
Q: Discuss the advantages and disadvantages of hot and cold working of metals.
A: HOT WORKING: the metalworking process is carried out above its re-crystallization temperature, it is…
Q: Explain how macroscopic plasticity in metals occurs from the point of view of microscopic mechanisms
A: Macroscopic plastic deformation simply corresponds to permanent deformation that results from the…
Q: Describe the relationship between stress and strain according to Hook's law?
A: The relationship between stress and strain according to Hook's law
Q: Do you expect a material's stiffness to increase or decrease if there is more than one deformation…
A: The stiffness of material if different for different type of loadings causing deformation in the…
Q: write the names of the destructive (mechanical) tests applied to metal-based materials and explai at…
A: the tests that are commonly used are - Izod and Charpy tests
Q: Describe the behavior of tested materials (mild steel and aluminium) as it responds to increasing…
A: following is the answer to the above problem-
Q: Given that the 106-cycle fatigue limit is often approximately half of the tensile strength of a…
A: given: Given that the 106-cycle fatigue limit is often approximately half of the tensile strength of…
Q: How do you increase the hardness of components being made from 0.8% carbon steel? Explain the…
A: Solution:
Q: A piece of metal was indented at a load of 100 kgf with a 10 mm diameter tungsten carbide ball. If…
A: GIVEN DATA- Load P=100kgf Diameter of bll D=10mm Diameter of indenter d=20% of 10mm We have to find…
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- Explain the different experimental methods that would relate stress with strain to determine the stress-strain diagram for a specific material.- With a suitable example explain the difference between True stress-strain and Engineering stressstrain.A metal wire of diameter 1.2 mm is used to carry a load of 1100 N. If the material of which the wire is made has a yield point of 950 MPa ultimate tensile strength of 1425 MPa then is this wire suitable for carrying that load? If yes, then support your answer with calculations and explain your results. If the answer is no, then explain why with calculations and calculate the required diameter of that wire to carry that load.
- Explain how fatigue failure occurs even if the material does not see overall stress levels higher than the yield strength.In a typical engineering stress-strain diagram, stress keeps on increasing after yield point due to strain hardening. In a few words or in a single short sentence explain what causes strain hardening?Please explain crack initation and propagation during metal fatigue? Explain factors that affect fatigue life and solutions to prevent fatigue failure. Explain environmental effects on fatigue behavior of materials.