A 250 mm radius brake drum is shown in Figure 3. The total mass moment of inertia of the brake drum and the flywheel to which it is attached is 20 kgm². The kinetic coefficient of friction between the drum and brake shoe is 0.4. The initial angular velocity of the system is 240 rpm in the clockwise direction. • Determine the constant force that must be exerted by the hydraulic cylinder if the system is to stop in 75 revolutions.

Q: What is elongation testing?

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

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: scuss the concept of stresses? State the properties could be drawn from the stress strain diagrams

A: when load is applied on a member , by nature it will try to deform the member. the material will try…

Q: Why is it important to find the absolute maximum shear stress in the material when it is subjected…

A: Shear stress: It is the force imposed per unit area in a body that cause deformation of a material…

Q: What is Circumferential Stress?

A: Circumferential Stress When pressure inside thin pressure vessel exceeds it exerts force from inside…

Q: Describe the strain and energy?

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

Q: F. 15° 700 N

A: Draw the FBD for the given question and find the angle between both the forces.

Q: What is thermal stress?

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

Q: Give an example of the Absolute Maximum Shear Strain?

A:

Q: What is the relationship between moment and shear?

A: The shear force and bending moment are related to each other through a differential equation. The…

Q: How can we calculate the maximum stress?

A: Stress: Stress is defined as the developed force in the specimen per unit area when that specimen is…

Q: ) A- What is fatigue strength?

A: QUESTION : WHAT IS FATIGUE STRENGTH ?   ANSWER:-

Q: What is the permanent strain?

A: Strain: When a force is applied to any system, they deform based on the applied force. 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: 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 Normal and Shear Stress Components?

A: Normal and shear stress components are distinguished by their direction with respect to the area on…

Q: Which moment is referred to as the plastic moment?

A: The plastic moment is the property of the structural section

Q: Poisson's ratio?

A: Given; A metallic rod of; l=500 mmD=50 mmTensile force, F=100 kN∆l=0.015 mmPoisson's ratio ?

Q: What is the hardest metal? What is it's Vicker's Hardness score?

A:

Q: Define what is tensile strength? short definition 2-3. sentences.

A: Questions: define what is tensile strength?

Q: Which of the four major material groups has the lowest thermal conductivity?

A: The four major material groups are :Metals, Non metallic organics, organics and polymers. Among…

Q: What are Ductile materials?

A: Ductility: It is a property of a material to elongate when tension or load is applied to it. In…

Q: The collar A, having a mass of 0.75 kg is attached to a spring having a stiffness of k = 260 N/m.…

A: Given data  Mass of collar = 0.75 kg Spring constant = 260 N/m Find the speed of collar and normal…

Q: What is true stress and true strain?

A: To define: True stress True strain Stress: It is defined as the internal resistance developed at a…

Q: What material and corresponding stresses is best for HP shape?

A:

Q: What is the linear variation in the shear strain?

A: The change in shape obtained due to shear stress is defined by shear strain.

Q: What would be the result of the Yielding of the material?

A: In stress-strain curve of material the yield point is the point of elasticity. Yield points shows…

Q: What do you mean by modulus of rigidity

A:

Q: Q/ Does when the temperature increase, does ductility and deformation increase or decrease?

A: The impact behavior of plastic materials is strongly dependent upon the temperature. At high…

Q: How does the Deformation of a body occur?

A: Deformation: Whenever a body is subjected to a change in its shape size from its original shape and…

Q: True of False? The property of material by which it can withstand extensive deformations without…

A: The property of material by which it can withstand extensive deformations without failure, under…

Q: When does the magnitude of stress increase?

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

Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.