Describe when and why bend testing (flexural testing) is most advantageous.

Q: What is elongation testing?

A: Elongation testing is a measure of far stretching of a sample before it breaks. The result is…

Q: Specify How to improve the structure of steel after hot rolling?

A: Hot rolling is the process of the metal is heated at high temperature and the compressed through…

Q: Describe how a brittle fracture occurs?

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

Q: What thickness limit classifies metal as being sheet?

A:

Q: How can we determine the deformation of an axially loaded member?

A: Whenever a member is loaded axially there is change in the dimensions of the member. Length of the…

Q: What is impact loading?

A: Impact loading is a type of loading whose period of action is very less. Generally, when the time of…

Q: Define build-up and draw down test??

A: Build-up test The build-up test is mostly performed in oil industries for calculating the flow rate…

Q: There is no difference between the words BENT and FLEX

A: The word BENT is related to the Bending that occurs in machine parts  and  The Word FLEX is related…

Q: How is shear obtained?

A: Shear stress developed in material obtains from the applied force on the material and the…

Q: Describe the State of Stress caused by the combined loadings?

A: Combined loading: In combined loading conditions,  the specimen/ component is subjected to various…

Q: Why may ultimate strength be greater than rupture strength?

A: The given problem is for ductile materials because for brittle materials there is no plastic…

Q: How can the ductility of material be specified?

A: Ductility is the material’s property to undergo large plastic deformation (permanent type) after the…

Q: 1. List the seven types of failure 2.Define die penetrant test 3.Suggest N.D.T.test for an internal…

A: subject : Material Science

Q: On a stress strain curve for structural steel, show various points like proportional limit, elastic…

A: Objective: To draw the stress-strain curve for steel, show points like proportional limit, elastic…

Q: How does point defect affects the property of a material?

A: To find : How does point defect affects the property of a material

Q: Describe the impact loading?

A: It is a kind of loading where the load is applied for a very small amount of time. In this loading,…

Q: Assume perfect elastic impact. Immediately after

A: Given; Asssume perfect elastic impact. immediateley after the  impact.A ball A of mass m falls under…

Q: What is the general equation for bending?

A: The general equation of bending is basically used in all the bending cases, i.e., for symmetrical…

Q: What is the relationship factor between the fatigue test and any other mechanical property (tensile…

A: given; What is the relationship factor between the fatigue test and any other mechanical property…

Q: As a crack advances, what happens to the stiffness of the cracked body? What happens to the…

A: from the above graph For condition one we can say that Stiffness decreases when the crack advances.

Q: Check and state in your answer booklet which of the following statements is False and which is True.…

A: 1) False- Elastic region is characterised by proportional relationship between stress and strain.…

Q: Materials, properties and testing Describe the effect bend testing have on the physical properties…

A: Bend testing :-

Q: What is the permanent deformation?

A:

Q: 1) Which of the following statement(s) is/are correct? i. Cold-rolling is used to produce sheet and…

A: Explanation1)Due to low temperature in cold-rolling operation no scale formation takes place. so it…

Q: When a material breaks suddenly with no sign of deformation, what is it said to be?

A: Brittle Material

Q: Why are cracks & notches prone to fracture propagation?

A: For any kind of crack or rapture in an object, there multiple factors that bring about failure.…

Q: Define deformation process

A: Deformation process is the secondary manufacturing process.

Q: Describe how a ductile fracture comes about?

A: Answer : Ductile Material are those materials that go through substantial plastic deformation before…

Q: What is maximum deformation?

A: Given Deformation To find Maximum deformation

Q: Provide a precise definition of the cross-product. And give an explanation of how it relates to…

A: for solution refer below images.

Q: Why fracture strain for metals (Aluminum, Mild Steel) in pure share is higher than pure tension?

A: fracture strain for metals (Aluminum, Mild Steel) in pure share is higher than pure tension because

Q: With what is Stress associated and how?

A: Please Specify the question in more detail, sir.   But in general, it can…

Q: Are the wedge grips suitable for tests of brittle materials? Explain

A:

Q: 2. In 4-point bending, it has a higher probability that defects will exist due to a larger volume of…

A: The stress concentration of a three-point test is small and concentrated under the center of the…

Q: Comparison factor Volumetric deformation Sheet metal work Surface area/volume ratio: High, Low Basic…

A: comparison factor  volume deformation  sheet metal work surface area/volume ratio; the area of…

Q: responsible for residual deformation?

A: Solution :-  Answer:- option a ( residual plastic strains)

Q: Stress and strain: What are they and why are they used instead of load and deformation?

A:

Q: Materials, properties and testing Describe the effect bend testing have on the mechanical properties…

A: A bend test is a technique for measure stiffness and yield properties of certain materials. Bend…

Q: What is tensile testing?

A: Tensile testing is a testing of the specimen in which load are applied at the ends of the specimen…

Q: Why is the punch diameter a factor in bend test?

A: The bend test machine is typically a universe testing machine that is used to evaluate ductility of…

Q: What 3 types of loading may lead to failure?

A: There are various ways by which a material may lead to failure. For instance, in case of mechanical…

Q: what effects does bending have on material properties

A: What is bending? It is defined as the state of stress.

Q: Discussions Why is a minimum thickness of at least ten times the depth of the impression required in…

A: Given: Discussions Why is a minimum thickness of at least ten times the depth of the impression…

Q: How we can measure shear modulus?

A: Shear modulus or modulus of rigidity can be found from the torsion test. As a result of the twisting…

Q: why specific rigidity is needed?

A: Specific rigidity is defined by the ratio of young's modulas to the density. The more accurate term…

Q: -What are the uses of the impact test?

A: Impact Test Objectives : The main objective of impact test is to measure dynamic toughness and notch…

Q: Which would normally have the highest percentage elongation at break, 0.1% carbon steel or aluminium…

A:

Q: what is the equation and units for finding yield stress?

A:

Q: What are the benefits of performing the tension test?a

A: given:   What are the benefits of performing the tension test?

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.