Revese Bending Fatigue Test machine

The aim of this project work is to design and fabricate a reversed bending testing machine which can be used to measure fatigue damage of various materials. Fatigue is the progressive, localized, permanent structural change that occurs in materials subjected to fluctuating stresses and strains that

Project Title

Revese Bending Fatigue Test machine

Project Area of Specialization

Mechanical Engineering

Project Summary

The aim of this project work is to design and fabricate a reversed bending testing machine which can be used to measure fatigue damage of various materials. Fatigue is the progressive, localized, permanent structural change that occurs in materials subjected to fluctuating stresses and strains that may result in cracks or fracture after a sufficient number of fluctuations. Fatigue fractures are caused by the simultaneous action of cyclic stress, tensile stress and plastic strain. If any one of these three is not present, fatigue cracking will not initiate and propagate.

Project Objectives

Using Reversed Bending testing machine, we will obtain S-N diagram of different materials to observe fatigue damage and to have realistic design data.
To observe the behavior at the surface of the material under reversed bending loading.
To observe short crack initiation and propagation at the surface of the material which will produce by reversible bending loading

Project Implementation Method

Usually the purpose of a fatigue test is to determine the lifespan that may be expected from a material subjected to cyclic loading, however fatigue strength and crack resistance are commonly sought values as well. The fatigue life of a material is the total number of cycles that a material can be subjected to under a single loading scheme. A fatigue test is also used for the determination of the maximum load that a sample can withstand for a specified number of cycles. All of these characteristics are extremely important in any industry where a material is subject to fluctuating instead of constant forces.
The normal bending machine bend the material in 90 c. the reverse bending machine bend the material 90  c, 45 c, 60 c and also calculate the fatigue mechanical properties of the material.

Benefits of the Project

Using Reversed Bending testing machine, we will obtain S-N diagram of different materials to observe fatigue damage and to have realistic design data.
The cost of this machine is low.
We can observe the behavior at the surface of the material under reversed bending loading.

Technical Details of Final Deliverable

The increase rate of population all over the world, there has been a huge rise in the rate of needs and requirements by the world fir manufactured process. This has forced the industrial sector to manufacture more and more products every day. The reverse fatigue testing machine  is used  for easily ending the material at any degree like 90 C, 60 C, 45 C.
The main components are used in this machine is,  
Lever arm, cross shaft, specimen, clamping plates, loading  arms, load cell, safety microswitch , motor.

Final Deliverable of the Project

Hardware System

Core Industry

Manufacturing

Other Industries

Others

Core Technology

Others

Other Technologies

Clean Tech

Sustainable Development Goals

Industry, Innovation and Infrastructure

Required Resources

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