Look at the room you are sitting in. You will see a wide variety of shapes that are strong enough to be pulled, squashed, bent, twisted, hit or dropped.

Shapes and structures

The walls of your room may be made of building blocks, stacked together. Each block has an oblong or rectangular, shape..

Your body has to be made of strong shapes as well. Feel your arms and legs. They are long and round, similar to rods, or cylinders. Now feel your head. It is round in every direction, roughly ball-shaped or a sphere.

How does the shape of the structure affect its strength

A pyramid was the strong shape the ancient Egyptians used to build their famous burial chambers. Cones are strong shapes, too. Look at the sharp ends of needles, for example.

Our world is exciting because the mix of shapes and materials is almost endless. In this blog you will see a wide variety of interesting shapes. Some are made with everyday materials, others with very special materials. Some of the strongest shapes are made by nature, others by the clever skills of engineers.

what are common steel structures

Strong shapes are all around you, so there is plenty to look out for. Just turn to next blog posts and start your investigations.


NDT Weld inspection for Aero Components | NDT Inspection and Testing | Ultrasonic Weld Inspection

What is Non Destructive Testing

Non Destructive Testing (NDT) is a method of testing the material’s characteristics such as physical, chemical and structural components to perform their function in a cost effective way. In this, components are examined / evaluated without destroy / damage of the product. NDT tests conducted in the parts aren’t damage the raw materials as such happened in destructive methods and it guaranteeing the safe operation of the parts. NDT is no way alters the components in any type of inspection. NDT is carried out widely for the conditioning monitoring (industrial inspections) of the plants such as aerospace, automobile, manufacturing and construction.

List of testing methods in NDT

Non Destructive Testing vs Destructive Testing

This process is done during the ‘production stage’ or ‘during the service life’ or ‘during the failure of the components’. Critical material properties are identified by testing under the different loads, where the components properties identified through the specimen failures. Some of the common destructive testing methods are Tensile and Compression Tests, Bending tests, Impact tests, Cupping tests, Hardness test etc. Defect are not identified in destructive testings. Destructive testing is a costliest process due to material loss. Hence it is not suitable for the service material testing.

Applications of non destructive testing in aerospace

Applications of NDT Weld inspection for Aeronautical Components

Production of Aero components are time consuming, complex designs and the components are very costly. Hence many components in aeronautical industries are keen to watch the parts.

List of NDT inspections

List of NDT Inspections

  1. Ultrasonic Testing

for Seamless tubes, Inspection, crack detection, materials characterization studies, Thickness measurement,

  1. Infrared and Thermographic Testing

  2. Visual InspectionCorrosion damage in Built-up structure, Pitting on the exposed surface

  3. Liquid Penetrant Testing

  4. Magnetic Particle Testing

  5. Eddy current theoryAbrupt changes in the components geometry, Cracking,

  6. Radiography Testing

  7. Acoustic emission Testing