## bookmark_borderUnderstanding Stress Transformation and Mohr’s Circle

In this video we’re going to take a look at stress transformation and Mohr’s circle. Let’s start by reminding ourselves about the stress element. The stress element is a useful way of describing the stresses acting at a single point …

## bookmark_borderUnderstanding Plane Stress

Analyzing solid mechanics problems in three dimensions can be really hard work, and it can get very complicated very fast. Fortunately in a lot of cases there are some simplifications we can use to reduce a three-dimensional problem to a …

## bookmark_borderUnderstanding Torsion

Torsion is the twisting of an object, caused by a moment acting about the object’s longitudinal axis. It is a type of deformation. A moment which tends to cause twisting is called torque. A common example of an object subjected …

## bookmark_borderUnderstanding the Area Moment of Inertia

Let’s say we have a plank of wood which we would like to use to cross a canal. It has a rectangular cross-section and so we could either use it like we have done here, or we could rotate it …

## bookmark_borderUnderstanding Material Strength, Ductility and Toughness

we’re going to take a closer look at strength, ductility and toughness – three very important material properties. Let’s get started! Strength is a measure of the stress a material can withstand. Two different values are typically used to …

## bookmark_borderUnderstanding True Stress and True Strain

Stress and strain are fundamental concepts that are used to describe how a body responds to external loads. In this video we’ll explore these concepts using the simple example of a loaded bar. Here we have a solid metal …

## bookmark_borderAn Introduction to Stress and Strain

Stress and strain are fundamental concepts that are used to describe how a body responds to external loads. In this video we’ll explore these concepts using the simple example of a loaded bar. Here we have a solid metal bar …