Stiffness and Strength are basic terms in structural engineering. One might feel they are similar but they have certain differences. And these differences are key in understanding these terms. It is safe to assume that Stiffness and Strength mostly govern Structural Engineering. All of Structural Engineering can be taught, in one way or another, based …
WHAT IS MOMENT OF INERTIA? Inertia is a property of a body under which it continues to be in a state of rest or uniform motion until it is acted upon by an external force.
Elastic Constants are the constants that express the elastic behaviour of a given material. There are three elastic constants. 1. Young’s Modulus 2. Shear Modulus 3. Bulk Modulus Sometimes, people add Poisson’s ratio to the list thereby making it Four Elastic Constants. We have already learnt about Young’s Modulus and its significance in one of …
Similar to Young’s Modulus, Poisson’s Ratio is a material specific and independent constant. It describes how different materials deforms under loading. Before we learn about Poisson’s ratio, let us learn about types of Strains. TYPES OF STRAINS We gave an overview of Strain in our previous post. To revise pretty quickly, Strain is a dimensionless …
Before we learn about the significance of Young’s Modulus, let us ask ourselves, why should we learn about material properties and what is the importance of that in design and analysis? Quick answer: Behaviour of various materials is different in different loads. For example, concrete performs well in Compression but it is very poor under …