Analyze the effects of thermal stress?

Q: What are the principal stresses? How can they be determined?

A: Principle stresses can be defined as the maximum or minimum normal stresses on a specific plane. The…

Q: Distinguish between simple and indirect shear stress?

A: Simple shear stress also known as direct shear stress is the shear stress developed due to a…

Q: Describe Castigliano’s Second Theorem?

A: As per Castigliano’s Second Theorem:   The first partial derivative of the total internal energy in…

Q: what are the real life applications of cold working and annealing?

A: Cold working is a metal forming process through which the dimensions of the metallic object can be…

Q: Describe the strain and energy?

A: When a body is subjected to any tensile or compressive forces then the body undergoes deformation…

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: Explain EXTERNAL WORK AND STRAIN ENERGY?

A: External work: Work is said to be done when energy created by all the processes taking place inside…

Q: How can we apply the general equations of plane stress transformation?

A: An object is under a biaxial state of stress when the stress exists only inside the 2-dimensional…

Q: What is thermal stress?

A: Thermal stress: When the temperature of the material is altered, the material tries to change its…

Q: Define the term Stress Concentrations?

A: Stress concentration is a location in a member under load where the magnitude of stress is…

Q: When is Strain hardening used? How is it performed?

A: Strain hardening is used when there is a need to increase the hardness of the material. It also…

Q: In your own words, explain What are the properties that constitute physical change?

A: There are many types of changes that can be encountered on a material. These changes are related to…

Q: Does the creep strength vary with temperature?

A: Creep: When a part of any member  is subjected to constant stress at high temperature for a long…

Q: Why should the thermal stresses be considered in design?

A: The stresses generated due to rapid heating or cooling of the structure are known as thermal…

Q: In what class of material is stress whitening often seen, and what is the physical origin of the…

A: The phenomenon of stress whitening is generally observed in amorphous solids. However, it may also…

Q: If the material is ductile and subjected to a static load , is it not necessary to use stress…

A: It is not necessary to use stress concentration factors for ductile material under static loading…

Q: Why is it not necessary to use stress concentration factors if the material is ductile?

A: Stress concentration is a location in a member under load where the magnitude of stress is…

Q: What cross-sectional property is influenced by the size effect factor between the depth and width of…

A: The properties that get affected by the depth and the width of the member are given below: (A) The…

Q: Give an example of complicated stress?

A: Stress: When a body is subjected to a force/load, it develops an internal reaction in order to…

Q: What is stress transformation and why we study stress transformation at a point within a given…

A: Stress transformation is defined as the process in which various stress of different planes of a…

Q: Discuss the Importance of Heat Treatment.

A: Solution:   Heat Treatment is a process to expose a material to a certain pre specified temperature…

Q: Complete the following comparative table between cold, warm and hot work:

A: The comparison between the Cold, worm, hot working given below as asked

Q: With the aid of diagrams describe the difference between latent and sensible heat for two different…

A: For solution refer below images.

Q: Why are the deformations that take place within a body are almostinfinitesimal?

A: Deformation is defined as a phenomenon in which bodies shape and size may change when it is…

Q: Discuss the technical aspects of mechanical, thermal, acoustical, and chemical properties.

A: Material properties that relate to different physical phenomena often behave linearly in a given…

Q: Define the term Shear Flow in Built-Up Members?

A: Shear flow: The built-up beams frequently face a problem of shear flow. Built- up beams are those…

Q: What is Ultimate stress?

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

Q: What is heat flux in thermal stress?

A: Heat Flux- Heat flux is defined as the ratio of heat transfer per unit area. Heat flux and thermal…

Q: thermal conductivity of beef?

A: Given: Q=0.8 W Thickness =1 cm Cross section=5x5 Surface temperatures, T1=28.5 CT2=23.3 C TO…

Q: Which equation will yield a direct solution to problems involving force,velocity and time?

A: Newton’s second law of motion           It mathematically states the cause and effect relationship…

Q: Discuss different types of forces with examples ,describe how these forces are responsible for…

A: Force :- A force is a push or pull acting upon an object as a result of its interaction with another…

Q: When does stress concentrations become important?

A: Stress concentration is very important in the case of cyclic loading. stress concentration leads to…

Q: When does the magnitude of stress increase?

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

Q: and nature of stresses

A:

Q: When a statically determinate structure is heated or cooled, its members do not experience…

A: When a statically determinate structure is heated or cooled, its members do not experience…

Q: Why is knowing the stresses generated is important and not just the magnitude of the force applied?…

A: Stress is defined as the internal resisting force per unit surface to resist the deformation of…

Q: What are the different types of heat treatments? Write a detailed note on each type. How can…

A: Heat treatment is a process of heating the material to some specific temperature, holding at that…

Q: effective thermal conductivity of the composite rod is

A: Given data;  Case ( 1) A slender rod of length =L Diameter =d  (L>>d) Thermal conductivity =k1…

Q: If the area and temperatures are same across the material. Explain whether thermal conductivity will…

A: Thermal conductivity is a property of the material which shows the ability to conduct heat through…

Q: Explain from the engineering perspective why the two heat-treated (air-cooled and water-cooled)…

A: From engineering perspective the steel which is air cooled are generally more harder than water…

Q: Discuss the advantages and disadvantages of hot and cold working of metals.

A: HOT WORKING: the metalworking process is carried out above its re-crystallization temperature, it is…

Q: In a few words or in a single short sentence explain what kind of relationships represent thermally…

A: Thermally Activated Process A Thermally activated process is one that has to overcome an energy…

Q: The properties of some very ductile metals, such as certain low- carbon steels, change at low…

A: Ductility - ductility is mechanical properties which are used to described as a material amenability…

Q: Describe a situation in which the thermal conductivity of metals is of advantage and another where…

A: The rate at which heat is transported through a material is proportional to the negative of the…

Q: What is thermal gradient in thermal stress [explained thoroughly]

A: The temperature gradient is defined as the difference in temperature between two points over a body.…

Q: Give an example of Shear Flow in Built-Up Members?

A: Built-up members are defined as the members who are joined together by means of nails, bolts, and…