What is the point called when a material fractures?

Q: What happens when the principal stresses act on the element?

A: In this problem, a shaft with moment and torque applied at the free end and one is fixed. And, here…

Q: What is section modulus?

A: The section modulus helps to calculate the outermost stress in the beam section. It is numerically…

Q: What is elongation testing?

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

Q: Process used to improve fatigue resistance of the metal by setting up compressive stresses in its…

A: Cold Peening or Shot Peening: It is a cold work process used to prevent parts from fatigue and…

Q: On examining a component which has failed by fatigue, the beach marks; O Radiate away from the…

A:

Q: If external loads applied to metals, how do it's respond? (Draw and show in figure

A: The response when external loads are applied on the metals

Q: What is creep and stress rupture testing?

A: Creep and stress rupture testing: The creep and stress rupture testing is used to check the…

Q: Draw stress-stain curve with plastic and elastic deformation

A: To draw :  stress-stain curve with plastic and elastic deformation

Q: 8 mm long is subjected to a uniaxial stress đo = 120 MPa. Determine the stress intensity factor Kị.…

A:

Q: What would be the tensile strength in pounds per square inch of a specimen measuring 0.375 in. thick…

A: Thickness of specimen=0.375 in Width of specimen=1.0 in Load = 27000 lb

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: In structures deformation or strain may be the result of ___________.  Choose all that apply…

A: Introduction: Deformation is the amount an object is stretched, while strain is the ratio of…

Q: Fracture occurs when the stress is greater than the ultimate tensile strength Select one: True False

A: given statement : Fracture occurs when the stress is greater than the ultimate tensile strength

Q: Why would engineers use Vickers Hardness testing (HV) over Brinell Testing for hardened tool steel…

A: Hardness is the property of the material that can be understand as the resistance to scratch and…

Q: Materials creep significantly in extremely cold weather True or false

A:

Q: Which choice below describes the mechanical property materials called toughness a ability to…

A: Which choice below describes the mechanical property materials called toughness a ) ability to…

Q: A steel specimen with square cross section is going to subject to impact test. Describe how to…

A: Impact energy E = mg(h1-h2)

Q: Name 2 Failure Criteria that are not suitable for ductile materials?

A: Theories of failure: The theory that helps to determine the safe dimensions of the required object…

Q: What is the Average Compressive Stress?

A: Forces acting perpendicular to the cross section of the body are normal forces. They can be either…

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

A: Solution:

Q: If the ultimate stress for a material is 250 MPa. Then the allowed working stress is _______MPa, if…

A: Given, The ultimate stress of material, σu=250 MPa The factor of safety, FOS=2

Q: In a tensile test of mild steel strain at failure is high Select one: True False

A: Solution:

Q: Calculate the thermal efficiency of a simple Rankine cycle for which steam leaves the boiler as a…

A: The thermal efficiency of the cycle.Given:The boiler pressure is .The condenser pressure is .The…

Q: What is the tensile strength of a metal if its endurance limit is 84675 psi?

A: Given that the endurance limit of the material is 84575 psi. Write the endurance limit formula,…

Q: 6) The energy absorbed during the fracture of notched specimen is related to the area under the…

A: A stress-strain curve is a graphical measure of the mechanical properties of a material. It gives…

Q: Welds machining tool marks and stress reversal such as those in rotating parts can cause a…

A: Welds machining tool marks and stress reversal such as those in rotating parts can cause a…

Q: Name the mechanical or optical device or the measurement and calculating the strain?

A: Strain refers to the deformation produced in the body per unit length or dimension in response to…

Q: In a tensile test on a mild steel specimen, the breaking stress as compared to ultimate tensile…

A:

Q: what would be the the tensile strenght in pounds per square inch of a specimen measuring 0.375 in.…

A:

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

A: Brittle Material

Q: The shear strength of a metal is commonly determined in which one of the following tests: Group of…

A: The below table describes the determination of corresponding stress for a corresponding test.…

Q: What does a tensile test show?

A: Tensile test is destructive test in which multiple mechanical properties are measured. It is called…

Q: What is the difference between the tensile test and bending test

A:

Q: Which statement/s is/are true about deformation?   It is the ability of the material to store…

A: GIVEN TOPIC- DEFORMATION OF MATERIALS SELECTION OF TRUE MEANING OF DEFORMATION

Q: What is the point D shown on the stress-strain curve? a. Elastic limit b. Ultimate stress point C.…

A: Any action that can change the state of motion is called force. Force is described by its magnitude,…

Q: what is the unit of stress?

A: stress can be defined as the ratio of the applied and the cross-sectional area.

Q: 3) Which of the following statement(s) is/are correct? i. The ability of a material to absorb energy…

A: Option B is correct ( ii only)

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: Fatigue life of a material is higher if it has,

A: The fatigue life of a material can be defined as the number of cycles that can be sustained by a…

Q: Which of the following describes the phenomenon of material failure? O Unstable crack growth Flutter

A: I think its answer should be first part unstable crack growth.

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.