Answer the following questions about the Ductile-to-Brittle Transition Temperature (DBTT). Explain the three main factors in the change in properties of a material from ductile to brittle.

Q: Match the image with the material property depicted by the image.          -           1.…

A: Ductile failure or fracture: When the tensile stress increase in a ductile material than it behaves…

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: Define the given terms related to mechanical properties of materials. 1. Impact energy 2. Impact…

A: As per bartleby guidelines we are allowed to solve only 1st 3 questions if multiple subparts are…

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 do you mean by fatigue failure of machine parts? Explain briefly. Give an example of a thing or…

A: Fatigue Failure

Q: Why should the theories of failure for brittle materials be used with caution?failure for brittle…

A: Theories of Failure: Theories of failure are those theories that predict the safe measurements of a…

Q: Determine the value of "Thermal expansion" for a given temperature change of the materials shown in…

A:

Q: Choose two options from those listed below. Compared to brittle materials, ductile materials are…

A: Option b and e are correct.

Q: Required information Determine the tensile and yield strengths for the following materials: SAE 1040…

A: Material SAE 1040 cold drawn steel is given.  Let us find tensile strength and yield strength of…

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: What is the behavior of a material according to Hooke's law?

A: Hooke’s law deals with the elastic property of a material.   As per Hooke's law the strain produced…

Q: An Al2O3 specimen is being pulled in tension. The specimen contains flaws having a size of 100 µm.…

A:

Q: A specimen of 975 mm long of an S-S90 alloy is exposed to a tensile stress of 300 MPa at 730 degrees…

A:

Q: Explain mechanism of fatigue in ductile and brittle material.

A: Ductile fracture mechanism: Ductile fracture is indicated by a significant amount of plastic…

Q: What data would have to be collected to determine the stress exponent for creep? What plot axes…

A: The creep strain rate is written as, From the above expression, the necessary required data are…

Q: (a) Identify the types of failure on a diagram below

A: (a) To identify: The types of failure. Explanation: Brittle failure: The failure occurs due to…

Q: Figure 2 shows the results of tensile tests performed on Alloys A and B. Interpret from the curves…

A: The figure given is : It represents two materials with different material properties

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: Describe the appearance of a fatigue fracture?

A: When a specimen or a component is subjected to a repeated load or cycling load, it may fail below…

Q: Define the given terms related to mechanical properties of materials. 1. Percent elongation 2.…

A: Let us define the following mechanical terms  1.Percent elongation 2. Percent reduction in area 3.…

Q: Fatigue fracture surface has 3 zones such as (1) initiation, (2) crack propagation and (3) sudden…

A: Fatigue is a type of failure which is independent of time that can occur in a material without any…

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: (a) Maximum and minimum stresses, (b) Stress range, (c) Stress amplitude, (d) Mean stress, (e)…

A: For solution refer below images.

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: If a brittle material has a stress-strain diagram, Is it different in tension and compression?

A: Brittle materials such as glass, concrete do not have yield points and they do not strain to harden.…

Q: Figure 2 shows the stress versus strain curve of four engineering materials. Compare the ability of…

A:

Q: 6. In a plot of the variation of stress with time in a fatigue test, what does the double arrow line…

A:

Q: Write the constitutive law for a material with linear elastic anisotropic behavior under mechanical…

A: Linear elastic anisotropic behavior refers to the mechanical property of a material that exhibits…

Q: What is fatigue? What does being tired mean? Factors affecting fatigue? Types of Fatigue Tests?

A: “Since you have posted a question with multiple sub-parts, we will provide the solution only to the…

Q: Draw a fatigue loading spectrum (stress - time plot) writing the appropriate equations of them, and…

A: Fatigue Loading Fatigue loading is the changes observed in a material under the influence of stress…

Q: What is the cause of the fracture of a brittle material?

A: Brittle fracture is one which takes place without any appreciable plastic deformation and by rapid…

Q: Using a stress-strain diagram, analyze and compare the mechanical properties of cast iron, mild…

A: given; stress-strain diagram?

Q: Based on the stress-strain plots, which materials tested are stiff and which are tough? How can you…

A: Solution:

Q: Having stress-strain relationship of ductile materials in your mind, highlight the differences…

A: Factor of safety is calculated as, FOS = Allowable StressActual Stress   When factor of safety to…

Q: Q12. How would a creep profile on a brittle material looks like?

A: How would be creep profile on a brittle material.

Q: Give some examples of brittle materials?

A: Brittle material is a kind of material in which breakdown occurs under very small tensile loads.…

Q: Answer the following Questions 1. What assumptions do we need for the linear elasticity theory? 2.…

A: Given questions are related to solid mechanics   [ Note : According to Bartleby's Answering…

Q: The sketch below shows a material with a crack of length 2a, and a nominal stress of so. You are…

A: Given Data:To Find:

Q: For the stress-strain curve shown below, please estimate the properties indicated. Please do your…

A: Given:Stress-Strain curve.To find:Various mechanical properties enlisted.

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.