What is Residual Stress?

Q: What is elongation testing?

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

Q: The nature of the stresses

A: Given; A helical gear with pressure angle,α= 200 and β=300 helix angleAt the  mid span of a shaft is…

Q: How are the stress components transformed?

A: Consider a plane truss. Let, σx and σy be the normal stress acting along x and y-axis,…

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: Part 2 As the area under the stress-strain curve decreases, the toughness___________.   stays the…

A: Toughness: The capacity to absorb the energy of the material before the failure is known as…

Q: What is the effect of an eccentric loading?

A: Eccentric loading: The eccentric loading is a type of loading on beams and columns in which load…

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: What is period of deformation?

A: The period of deformation can be defined as

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: Rank the curves based on the change in strain that occurs during the necking phase. Rank the curves…

A: Various stages shown on the stress-strain diagram are: Proportionality limit Plastic limit Necking…

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: Simple stress and strain pleasee help

A: Given Diameter = 150 mm Gauge length = 300 mm Scale for graph 25 mm = 50 mm 25 mm = 0.2 X 10-3 mm/mm…

Q: What is external force?

A: Answer : Force - It is an effect which changes or try to change the state of a body.

Q: What is the tensile stress?

A: When there is loading over a member in the direction of its axis, then stress produced under such…

Q: What do the normal strains cause?

A:

Q: 2. Which of the following are responsible for residual stress and distortion?

A: Residual stresses are the stresses in the material remains in the material after the removal of the…

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: 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: Why should stress not exceed the material by design?

A: Every component is designed based on working stress which will acts on the component during its…

Q: What is the permanent deformation?

A:

Q: What is Ultimate stress?

A: Ultimate Stress The ultimate stress recognizes as the maximum value of stress that a material can…

Q: 5) Draw the stress-strain curve and gives the stress and strain equations for both Engineering and…

A:

Q: Define deformation process

A: Deformation process is the secondary manufacturing process.

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 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: Can the yield point of material be increased by strain hardening?

A: The strain hardening process is known as the Work hardening. This operation is carried out below the…

Q: What is the general state of Stress?

A: The general state of stress at a point is 3 normal stress and 6 shear stress.

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

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

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: How is Dilatation, or volumetric strain caused?

A: Dilatation or volumetric strain: The volumetric strain or dilatation is defined as the change in…

Q: Describe shear stress?

A: Shear stress When a body undergoes a load and deformation is caused by the stress that is parallel…

Q: With what is Stress associated and how?

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

Q: tensile strength

A: when weight and energy is the criterion for design the then required material having high tensile…

Q: When does the magnitude of stress increase?

A: When a body undergoes deformation under normal or shear forces/loads, then it undergoes…

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: How did temperature affect the toughness of the specimens?

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

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: 6) Chapter 3: Problem 3.7: (USCS Units) The flow curve for a cestain metal has a strain-hardening…

A: Given data: n=0.2k=26000 lb/in2 Need to determine the flow stress and rue strain.

Q: Define Tensile strength.

A: Given Data⇒ Tensile strength Problem statement⇒ Problem says Define Tensile strength.

Q: What is the Shear Formula?

A: When the shear force is applied on the body then in that case the shear stress is acted upon the…

Q: What are the tensile forces?

A: Tensile force is the force applied on a material which stretches the material. The tensile force…

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: How can the stress coordinates of the points on the curves be determined?

A: To explain  How can the stress coordinates of the points on the curves be determined? Concept used…

Q: When an elastic material is subjected to normal stress, what would thestrains that are produced…

A: The strain is the response of a system to applied stress. When a material is loaded with a…

Q: What is the modulus of rigidity?

A: Modulus of rigidity

Q: What is the plastic strain?

A: Given Data⇒plastic strainProblem definition⇒Problem says What is the plastic strain?

Q: What is internal force?

A: Generally, Internal forces are generated due to external forces in the materials which is under…

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.