As a crack advances, what happens to the stiffness of the cracked body? What happens to the compliance?

Q: a) Draw the stress strain curves for metals, polymers and ceramics?

A: Given Data⇒   Stress-strain curve for metal, polymers, and ceramics

Q: When EAC processes are active, under what condition does final fracture occur?

A: The EAC or Environmental Assisted Cracking is the process in which a machine part gets fail due to…

Q: 1-What are the uses of the impact test?

A: We are suppose to solve only one question. Please post other question as a separate question.

Q: What happens if the principal stresses at a critical point in the material?

A: First, define the critical point. Critical points are those points in the given plane where the…

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: 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: what are the difference between impact testing and tensile testing

A: Both test are use to measure the properties of a material.

Q: Give an example of the single shear failure?

A: Shear is caused by the action of two opposite and equal forces acting on a material. If the two…

Q: What does the region of strain hardening cause?

A: The working of the metals below their  recrystallisation  temperature is known as cold working…

Q: When does impact occurs?

A: The impact is defined by when two colliding bodies interact with each other for a very little…

Q: How is the tension or compression test performed?

A: A tension test is a basic material science and engineering test that is used to determine the…

Q: What are ratchet lines, and how are they arranged with respect to the fatigue crack front and any…

A: Ratchet lines are steps in fatigue fracture surfaces  that originate  from the interaction between…

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: raw a potential to failure curve and explain its characteristics

A:

Q: The energy absorbed during the fracture of notched specimen is related to the area under the…

A: Solution:

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: What is the tension and compression test?

A: Tension and compression test are preferred for determining material properties like elastic limit,…

Q: Question: Draw a potential to failure curve and explain its characteristics briefly.

A: Potential to failure curve(PF curve)

Q: What happens to the shear stress as flexural capacity increases?

A: It is the strength of any beam against transverse loads applied on them. It is given by 'EI', where…

Q: What are the main features of the Rockwell Hardness Test?

A: The Rockwell scale is a hardness scale which is based on indentation hardness of a material. This…

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

A: Brittle Material

Q: Mention the main advantage of Vickers hardness test method? ...... ............ ....................…

A: Vickers hardness test method - it is a optically hardness test to measure the hardness of material,…

Q: What is maximum deformation?

A: Given Deformation To find Maximum deformation

Q: Explain Flexure Test of Small, Clear Specimen (ASTM D143) ?

A: ASTM D143  consists of the "Standard Test Methods" for Small and  Clear Specimens of Timber/wood. It…

Q: Which material is stronger? 250 maraging steel at room temperature (RT) or 6061 T6 aluminum sheet at…

A: Aluminium is around one-third the weight of stainless steel, which is why it's employed in…

Q: In the hardness test, answer the questions 1- What happens to the sample if its thickness is less…

A: Thickness of the specimen should be at least seven times of the depth of the indentation. It allows…

Q: With what is Stress associated and how?

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

Q: If the material is ductile, how can the failure be specified?

A: Ductile Material: These materials deform plastically under the application of load. The deform…

Q: What is the Endurance or Fatigue limit?

A: Given Endurance limit To find Definition

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

A: Flexural testing is done to determine the flexural modulus or flexural strength of the material. In…

Q: What is the tolerance zone (and Material Boundary) for a non-cylindrical feature such as a slot or…

A: tolerance can be defined as the allowable variation in dimension for any workpiece. It could be…

Q: A cleaving failure results from which type of stress test? а.

A: A cantilever beam , is a beam having one free end and one fixed end. The most heavily loaded section…

Q: responsible for residual deformation?

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

Q: How did temperature affect the toughness of the specimens?

A: temperature affecting the strengths of the toughness . IMPACT TOUGHNESS        Toughness is the area…

Q: What is Residual Stress?

A: Whenever a body is deformed beyond the elastic limit it is unable to regain its initial shape. Due…

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: 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: How might the hardness value obtained in a Rockwell hardness test be specified? Select one: О а. НК…

A: Option b is correct.

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: 1. Define ultimate compressive strength. What are are the specific conditions of a compression test…

A: According to our guidelines we are supposed to answer first question only. 1. The compressive…

Q: What happens when the material is stressed beyond the yield point?

A: Any material is subjected to various processes and follows a stress-strain curve. In this curve,…

Q: Which factors affect the selecting of the appropriate Rockwell hardness scale?

A: Following factors affect the Rockwell Hardness test: For different materials different Rockwell…

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: Discuss the qualitative changes of burst and collapse resistances when the casing string is become…

A: The collapse and burst resistances of a pipe alter as it is subjected to axial stress (tension…

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: What is the reason for using a minor load in the case of Rockwell hardness test method? ...

A: Reason for using minor load

Q: What is process when stress causes a material to strain past the elastic limit and material has a…

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.