Strength is considered in terms of compressive strength, tensile strength, and shear strength, namely the limit states of compressive stress, tensile stress and shear stress respectively. One can see the importance of stress and strain. They are an indication of how severely the part in machine is loaded and how it is a factor that determines whether the forces applied are reasonable. Stress and strain always occur together. When a material is subjected to stress, it deforms, and when a material is deformed there must be strain.
Surface fatigue, abrasion, thermo-chemical reactions, adhesion are types of wears. Wear is an undesirable effect, but it is controlled by adjusting friction, materials, operating temperatures, etc. Several materials like high carbon/low carbon steel, ceramics, hard plastics, etc. used for the applications. For the analysis of temperature behaviour, Heat generations and its distributions (convection and conduction) analysed.
Usually Two gauges are in tension, and other two in compression, which are wired through compensation adjustment .On application of force (weight), the strain deforms to the electrical resistance of the gauge proportional to the load. LOAD
At a microscopic level, all surfaces are rough, and when they slide against each other, there is a resistance to slide that needs to be overcome by the application of a force. This force is called the force of friction. It can be either static or kinetic. It is static when the force acts on a stationary object, and is kinetic when it acts on a moving object. An important aspect of the force of friction is the amount of resistance offered the surface under consideration.
Owing to the velocity difference between the rotating tool and the stationary work piece, the mechanical interaction produces heat by means of frictional work and material plastic deformation. On one side of the tool the rotational direction is same as that of the tool travel direction, it is referred to as ‘advancing side’ and the other side is referred to as ‘retreating side’,[1-4].FSW involves complex interactions within thermo mechanical process. These interactions affect the heating and the cooling rates, plastic deformation, flow, and dynamic recrystallization .Different aspects of numerical analysis of FSW are achievable regarding micro structural study, material, heat flow and heat generation. The thermo mechanical process under the tool results in different micro structural regions
Function: A tensioner works along with the serpentine belt, which is the pulley that drives the eng... ... middle of paper ... ...ill also be a sag in the chain in the front direction so that the movable part of the frame will try to pull that chain in the forward direction such that the required tension will maintain in the chain drive. Now when the roller is moving in the left direction and it is required to change the direction of rotation or it is needed to be stopped, due to the inertia force it will tend to move backward. But as the spring tensioner is placed in the backward direction the movable frame of the tensioner tries to compress the springs and the strain energy will get stored in the springs and the shock that is produced is absorbed. In addition to that sudden shock there will also be a sag in the chain in the back direction so that movable part of the frame will try to pull that chain in the backward direction so that the required tension will maintain in the chain drive.
Name :Hemamalini Rawindran Group: ACB (A2) 1.0 Wear In materials science, the terminology wear simply means, the disintegration of material from a solid surface by the movement of another solid. Wear may result whenever there is sliding. A potential wear situation occurs when there is relative motion between two solids under load. Motion can be unidirectional or reciprocating either sliding or rolling. There may be a combination of rolling and sliding of wear which may occur due to oscillary movement at small amplitudes.
The weak bonds, agglomerates may break into small fragments or primary particles . The following factors influencing the breakage and strength behaviour in the agglomeration process are, Binder viscosity will affect the wet granule strength by viscous forces in liquid bridges between primary particles during relative movement  and it will dominate over capillary forces in determining the strength of agglomerates . Binder
Other factors such as the friction, air or fluid resistance, and pressure effect the acceleration as well. All of these factors do not work against or in accordance with acceleration in the same way. Friction works in opposition to acceleration. Friction involves two objects that are in direct contact with on another but are moving in different directions. Involved with friction is air and fluid resistance.
Strain Gauge Blog Let’s understand STRAIN Whenever an external force is applied on a body, some changes occur in the dimension of the body. The ratio of this change of dimension in the body to its actual length is called Strain. It is a key parameter to identify the changes occurring in the internal structure of any material on load application. Types of STRAIN 1 Tensile Strain Produced by tensile force & results elongation of length & decrement in cross-sectional area. 2 Compressive Strain Produced by compressive force & results in decrease of dimensions of the body.