What is non-destructive inspection in aircraft?

Non-Destructive Testing (NDT) is a broad category of inspection techniques, and is an important tool in aircraft maintenance, repair and overhaul (MRO). NDT includes the inspection of an airframe structure and engine for surface and sub-surface cracks, impact damage, corrosion, and other irregularities.

What are types of non-destructive inspection?

Here are the eight most commonly used NDT techniques:

  • Visual NDT (VT)
  • Ultrasonic NDT (UT)
  • Radiography NDT (RT)
  • Eddy Current NDT (ET)
  • Magnetic Particle NDT (MT)
  • Acoustic Emission NDT (AE)
  • Dye Penetrant NDT (PT)
  • Leak Testing (LT)

What is NTD in aviation?

Non-destructive testing (NDT) is a way to detect and evaluate flaws in materials. Within aerospace NDT plays a vital role in the design, manufacture and maintenance of aircraft. The simplest and most accurate way of testing materials and components is often to test them to destruction.

What are the different types of NDT used in aircraft?

When concerned with time, the two most important methods for aircraft nondestructive testing include eddy current testing (ECT) and ultrasonic testing (UT). Compared to other NDT methods, ECT and UT can detect more flaws in less time and without the hassle of extensive setup times.

Why do we need to perform non-destructive testing?

Non-destructive testing offers reliable and accurate results which can provide stability. Since this testing method does not damage the components, all pieces of equipment and machinery can be tested which can minimise the inaccuracy of test results and any undermined irregularities.

What is non destructive method?

Nondestructive testing (NDT) is any of a wide group of analysis techniques used in science and technology industry to evaluate the properties of a material, component or system without causing damage.

What is ultrasonic inspection aviation?

Ultrasonic Testing in Aircraft Applications Ultrasonic testing uses pulses of high-frequency sound energy to detect surface and subsurface cracks and other defects. These pulses come from a transducer or probe, which a technician manually moves over the surface of the component under inspection.

What is the difference between destructive testing and non destructive testing?

The difference between destructive and non destructive testing. Destructive testing is conducted by damaging the specimen that is being tested. In contrast, during non-destructive testing (NDT), the tested item does not suffer any physical damage and can be used in active operation after the testing.

What is a nondestructive inspection?

“Nondestructive testing is defined by the American Society for Nondestructive Testing as, ‘The determination of the physical condition of an object without affecting that object’s ability to fulfill its intended function.’” “Nondestructive inspections define the maximum size of life-limiting defects that could be present at a given time.

What is non-destructive testing?

Non-Destructive Testing (NDT) is the analysis techniques used to evaluate the properties of a material, component or system without causing damage. The terms Non-Destructive Examination (NDE), Non-Destructive Inspection (NDI), and Non-Destructive Evaluation (NDE) are also commonly used to describe this technology.

What is destructive testing in aerospace?

Destructive testing is used in aerospace to determine the physical properties of materials, components and assemblies. It can reveal useful information about characteristics of materials including ductility, tensile strength and fracture toughness.

What happens during an aircraft inspection?

Visual inspections of aircraft structures and components for damage such as cracks, corrosion and misalignment will often be the first sign of a problem. Various equipment is used for visual inspections, from magnifying glasses and mirrors to video borescopes for viewing hard to reach places, charge-coupled devices and remote viewing systems.