Fundamental Concepts in Solid Mechanics

1.1       Solid A material is called solid if in addition to normal force it can also support substantial shear force in a static condition. On the other hand, fluids cannot support shear force and have continuous deformation on the application of shear. 1.2       Force It is an action that tends to maintain or alter the […]

Solid Mechanics: Introduction

Mechanics is the science of forces and motions. The origins of mechanics could be traced back to 4th century BC when Aristotle founds the system of Aristotelian physics, but it was not until 1687 when Isaac Newton publishes his three laws of motion that laid the foundation for what is now known as classical mechanics. […]

Basics of Structural Engineering: Force,Work and Energy

I would like to discuss about Force, Work and Energy form the point of view of a structural engineer. These are the fundamental quantities and proper understanding of these terms is necessary for a structural engineer. Force The basic definition of force that we have learned is that force is push and pull. Force when […]

What is the difference between a beam and a column?

Beam and Column In structural engineering we give names to different structural members based on their behavior under applied load. For example: Say you have a rod of length 3 m made out of steel and a load P to support. You decide to hang the rod from ceiling and hook the load to the […]

What is Bending Moment?

To understand the term bending moment we have to understand what is a moment of force. Force: The basic definition of force that we have learned is that force is push and pull. Force, when applied to an object, tends to change its motion or its shape. In structural engineering, we have well-defined cross sections […]