hello sir,
i m patil ajay from coe osmanabad
i m interseted in above sub
so , pls send me detail report on above mention sub
....etc

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please send the report and ppt on the topic ultrasonic techniques for hidden corrosion detection ....etc

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ULTRASONIC TESTING
NATURE OF SOUND WAVES
Sound waves are elastic waves
It can be transmitted through both fluid and solid media
Elastic waves with frequency higher than audio range is termed as ULTRASONIC WAVES
Ultrasonic waves used for non destructive inspection of materials are usually within frequency range 0.5 MHz to 20MHz
In fluids sound waves are of longitudinal compression type
Particle displacement is in the direction of wave propagation
In solids they are shear waves and elastic surface waves can als ....etc

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Seminar report for ultra sonic detecion for hiddemn corrotion detection ....etc

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Please send me the report of the topic ultra sonic techniques for hidden corrosion detection ....etc

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Detection of corrosion damage in aircraft wing skin structures is an ongoing NDT challenge. Ultrasonic methods are known and well-accepted techniques, which are relatively simple to carry out in terms of setup, probes and instrumentation and operator training. However, with conventional inspection from the top surface using a transducer at normal incidence (0o to the normal to the surface) producing a visual picture in the form of a C-scan, it is very tie consuming to point-by-point inspects large aircraft wing skin areas. In addition it is too ....etc

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INTRODUCTION
CAUSE OF CORROSION – MOISTURE, WATER, CRACKS
AREAS AFFECTED – SURFACE, LAP JOINTS, FASTENERS
3. NEED OF NDT
NON DESTRUCTIVE TESTS (NDT)
VISUAL INSPECTION
MAGNETIC PARTICLE TEST
LIQUID (DYE) PENITRATION TEST
X – RAY PENETRATION INSPECTION
EDDY CURRENT INSPECTION
ULTRASONIC INSPECTION
DEFECTS OF CONVENTIONAL SYSTEMS
INSPECTION FROM TOP NORMAL TO SURFACE
2. TIME CONSUMING FOR POINT TO POINT INSPECTION
3. INABILITY TO DETECT (a) DISBONDS IN MULTILAY ....etc

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Ultrasonic Techniques for hidden corrosion detection
Introduction
Corrosion is one of the serious problem affecting airforce and other aviation industries. It affects the aircraft on its wings, surface, between joints and fasteners. The presences of corrosion underneath the paints of surface and between joints are not easy to be detected. The unnoticed presence of corrosion may cause the aircraft to crash leading to human and money loses. To detect the corrosion present on the metal surface, various method ....etc

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Basic Principles of Ultrasonic Testing



basic principles of ultrasonic testing Wave propagation

Longitudinal waves propagate in all kind of materials.
Transverse waves only propagate in solid bodies.
Due to the different type of oscillation, transverse wavestravel at lower speeds.
Sound velocity mainly depends on the density and E-modulus of the material.

Reflection and Transmission


As soon as a sound wave comes to a change in material ....etc

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ULTRASONIC TESTING

Principle of UST
ULTRASONIC INSPECTION is a nondestructive method in which beams of high-frequency sound waves are introduced into the material to be inspected for detection of flaws.
The sound waves travel through the material with some attendant loss of energy (attenuation) and are reflected at interfaces.
The reflected beam is displayed and then analyzed to define the presence and location of flaws or discontinuities.
FLAW CHARACTERISATION TECHNIQUE METHODS:
Most widely used flaw sizing metho ....etc

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