How are the materials classified as ductile or brittle?

Q: Define the meaning and significance of the ductile to brittle transition temperature (DBTT).…

A: DBTT: A temperature at which there is abrupt change in the ability of material to absorb force…

Q: Under what conditions may a ductile material undergo a brittle fracture?

A: In some cases ductile materials will fail in brittle the causes for this behavious includes 1)…

Q: What is the stress-strain curves of materials?

A: The stress-strain curves shows the behaviour of material specimen when subjected to tension or…

Q: Describe how a brittle fracture occurs?

A: Brittle materials are those materials when subjected to stress fails without any sign of failure.…

Q: How can you determine the modulus of elasticity and the modulus of rigidity of the material?

A: The expression to determine the modulus of elasticity is, Here, Y is the modulus of the elasticity…

Q: When does the mean stress level affect fatigue crack propagation rates in metal alloys?

A: A component is subjected to a fluctuating stress fails at a stress much below their static strength.…

Q: what is the equation and the units of measure for ductility?

A:

Q: What is the Distortion energy failure theory? Under what loading types and materials would you use…

A: The Distortion energy failure theory states that a material yields or fails when the total…

Q: Discuss the factors influencing the ductile-to-brittle transition in materials?

A: The ductile-to-brittle transition is a phenomenon that involves a change in fracture behavior of…

Q: How is the torsion test performed to determine the material’s ultimate shear stress?

A: A torsion test is a destructive type of testing used to find the properties of specimen under stress…

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: 2a: How a material can be mechanically strengthened by designing the grain size after…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: How can the modulus of elasticity of the material be determined?

A: Elastic modulus(E) is constant for a given material .It is given by the ratio of stress and strain…

Q: How does the stress/strain graph of a brittle material compare to a ductile material?

A: When a material is given to an external load, initially it experiences elastic deformation the…

Q: Does the failure of materials occur due to creep and fatigue?

A: Creep: When a part of any member  is subjected to constant stress at high temperature for a long…

Q: Explain the difference between brittle and ductile materials?

A: The difference between brittle and ductile materials is provided below

Q: 11. List the conditions that can induce brittle failure even in a ductile material.

A: Conditions that can induce brittle failure even in a ductile material- 1. High Strength Material are…

Q: When does the Fatigue occur in the material?

A: When a material is subjected to repeated or cyclic loading then the failure in the material is…

Q: Distinguish between the Brittle material and the Ductile material?

A: Brittle Materials: These materials elongate on the application of load to the materials. They can…

Q: Describe the differences between the Brinell, Vickers and Rockwell hardness tests.

A:

Q: Is the fatigue responsible for the materials?

A: Fatigue: The failure of a material to the repeated cyclic loads applied on it is termed as Fatigue.…

Q: What is the difference in appearance between ductile & brittle fractures?

A: Fracture is a phenomenon in which body is separated into two or more pieces under the application of…

Q: What is the Theory of Elasticity?

A: Elasticity is a property of a material to deform under the action of external force and regain its…

Q: Define the term Modulus of Rigidity?

A: When a body is subjected to force parallel to the cross-section area, then the internal stress…

Q: What is the effect of strain hardening on the material?

A: Strain hardening When a material is being plastically deformed, then the strength of the ductile…

Q: Under what circumstance could a fatigue crack become nonpropagating, even though the component…

A: Fatigue cracking is one of the primary damage mechanisms of structural components. Fatigue cracking…

Q: What are the three equations of flexural rigidity?

A: Flexural Rigidity  It defined as the resistance offered by structure while undergoing bending or it…

Q: 3. Labeled S-N curve for fatigue, fatigue crack growth curve and creep curve for a metal.

A: for solution refer below images.

Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.