Engineer4Free

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The #1 source for free engineering tutorials. Engineer4Free is a free tutorial site where anyone can learn university level math, science, and engineering subjects. Learn civil, mechanical, chemical, software, and more engineering skills today!

Engineer4Free

1y ago

SkyCiv is a cloud-based structural engineering software and API technology provider. The company’s Free Beam Calculator is one of its most popular free resources among structural engineering students and professionals. It’s a web-based tool that allows users to perform structural analysis and design calculations for simple and cantilever beams. The free tool calculates bending moments, shear forces, deflections, and reactions for a given beam geometry and loading conditions, helping students and professional engineers design safe and efficient structures. The best thing is that it is completel ..read more

Engineer4Free

2y ago

Integration by Table is the introductory chapter / method for many studies in Calculus 2. Here are four video tutorials that introduce the idea, and work through some examples. Here is a link to the integral table / formula sheet that I use in the videos.
Integration by table explained
Integration by table example #1
Integration by table example #2
Integration by table example #3
There are nine more fully worked practice problems with solutions available here to Patreon supporters <3 ..read more

Engineer4Free

2y ago

The primary purpose of a foundation in structures is to distribute the loads acting on the structure and its weight safely to the ground. Whether the structure is a residential or commercial building, a skyscraper, or any superstructure, selecting the most suitable and favourable foundation design is vital for the overall safety and economical design. Although most structural engineers would opt for a shallow foundation type as they are cheaper and have ease of construction over a deep foundation type, multiple factors may influence the selection process.
Application of various foundatio ..read more

Engineer4Free

2y ago

Here are four tutorials and 9 fully solved practice problems that introduce and explain the concept of integration by table. This is the most basic form of "integration" and is what many more advanced calculus problems will eventually reduce to.
Integration by table explained
Integration by table example #1
Integration by table example #2
Integration by table example #3
Practice Problems ..read more

Engineer4Free

2y ago

How to model, analyse and design a Steel Moment Frame as per AISC 360 and structural analysis software
Moment frames are combinations of columns and beams connected with partially or fully restrained connections. Moment connections are very important types of frame connections and cannot be considered simply supported conditions. They are used in similarity to shear walls and braced frames; they resist lateral forces in conjuncture with vertical forces.
Because of the fixed nature, frame members’ rigidity is the main source for the lateral stiffness of the frame. Br ..read more

Engineer4Free

2y ago

With 42 free tutorials, the DC Circuits course is now complete. The course covers a basic introduction to electricity, circuit laws, series and parallel resistors, current and voltage sources, nodal analysis & supernode, and mesh analysis & supermesh.
You can find the circuits lessons here ..read more

Engineer4Free

2y ago

Here are five tutorials that introduce and explain mesh analysis for DC circuits. The lessons cover the basics principals of mesh analysis, along with some fully worked examples, as well as an introduction to supernode analysis, which is a special case of mesh analysis that occurs when there is a current source between two loops of the circuit.
Mesh analysis for circuits explained
Mesh analysis example problem #1
Mesh analysis example problem #2
Supermesh analysis explained
Supermesh analysis example problem ..read more

Engineer4Free

3y ago

These 5 tutorials introduce and cover Nodal Analysis for circuits, and Supernode Analysis. There is a dedicated video to introduce both Nodal Analysis and Supernode Analysis, and 3 fully worked through example problems with various configurations of nodes, branches, and power sources (current sources and voltage sources). Generally, if you follow the steps laid out in these lessons, you'll be solving these problems like a boss! These tutorials are part of a full Circuit Analysis Course.
Nodal analysis for circuits explained
Nodal analysis example problem #1: two voltage sources
Nodal ..read more

Engineer4Free

3y ago

Here are 7 tutorials that cover Series and Parallel Resistors. In the lessons, I go over how voltage division and current division work, and a few examples of each. I also run through a more complicated example that involves both voltage division and current division, but you'll see in the end that it's actually pretty straightforward to combine the two when seeking the equivalent resistance of a circuit. The full circuits course can be found here.
How voltage division works (series resistors)
Voltage division example problem #1 (series resistors)
Voltage division ex ..read more

Engineer4Free

3y ago

Here are 9 new video tutorials that cover Ohm's Law, Kirchhoff's Laws. They introduce the concepts and also go over a few worked examples of varying difficulty.
Ohm's law
Ohm's law example problem #1
Ohm's law example problem #2
Kirchhoff's current law
Kirchhoff's current law example problem #1
Kirchhoff's current law example problem #2
Kirchhoff's voltage law
Kirchhoff's voltage law example problem #1
Kirchhoff's voltage law example problem #2
The rest of the Circuit Analysis course can be found here ..read more