Hello everyone, and welcome to another video on the Efficient Engineer channel! In this video we’re going to take a look at a really interesting material property, Poisson’s ratio. Poisson’s ratio is such an important material property because it gives …
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bookmark_borderUnderstanding Young’s Modulus
Welcome back to the Efficient Engineer channel everyone! In this video we’re going to talk about Young’s modulus, one of the three main elastic constants along with shear modulus and bulk modulus, which are used to describe how a material …
bookmark_borderUnderstanding Viscosity
Thanks to CuriosityStream for sponsoring this video. Everyone has an intuitive understanding of what the viscosity of a fluid is. Honey is more viscous than oil, and oil is more viscous than water. Viscous fluids feel thicker, and don’t flow …
bookmark_borderUnderstanding Aerodynamic Lift
Thanks to CuriosityStream for sponsoring this video. Since well before the first Wright brothers flight in 1903, and all the way to the present day, mankind has been fascinated by taking to the skies. Once thought to be impossible, heavier-than-air …
bookmark_borderUnderstanding Aerodynamic Drag
Thanks to CuriosityStream for sponsoring this video. Watch thousands of documentaries and get access to Nebula for free when you sign up using the link in the description. When fluid flows past an object, or an object moves through a …
bookmark_borderUnderstanding Bernoulli’s Equation
Thanks to CuriosityStream for sponsoring this video. Watch thousands of documentaries and get access to Nebula for free, when you sign up using the link in the description. Bernoulli’s equation is a simple but incredibly important equation in physics …
bookmark_borderUnderstanding Laminar and Turbulent Flow
This video from The Efficient Engineer is sponsored by Brilliant. One of the very first things you learn in fluid mechanics is the difference between laminar and turbulent flow. And for good reason – these two flow regimes behave …
bookmark_borderUnderstanding Fatigue Failure and S-N Curves
Components which are subjected to loading which varies with time can fail at stresses well below the material’s ultimate strength. This is known as fatigue failure and it accounts for the vast majority of mechanical engineering failures worldwide. The bolts …
bookmark_borderUnderstanding the Deflection of Beams
Thanks to Brilliant for sponsoring this video. Beams are used to carry loads in a whole range of different structures, and it’s important for engineers to be able to predict how much a beam will deflect when loads are …
bookmark_borderUnderstanding Stresses in Beams
If we apply a load to a beam, it will deform by bending. This generates internal stresses, which can be represented by a shear force acting in the vertical direction, and a bending moment. The shear force is the resultant …