Dr Seán Carroll, Author at DegreeTutors.com

Simulating crowd vibrations using the Duhamel Integral

In this Python mini-project, you’ll learn about the Duhamel Integral and how it can be used to simulate the dynamic response of a single degree of freedom system. We’ll discuss how to solve the integral and then write some Python code to implement our solution for any arbitrary loading. In the second half of this project, we’re going to use our Duhamel Integral solver to build a crowd loading simulation. This will allow us to simulate the vibration response of a footbridge to pedestrian traffic.

P-Delta Analysis and Geometric Non-linearity

Structural Analysis / By Dr Seán Carroll

In this tutorial, we’ll explore the P-Delta effect; a form of non-linear behaviour that can lead to large magnitude sway deflections in columns. Put simply, P-Delta describes the phenomenon whereby an additional or secondary moment is generated in a column due to the combination of axial load (P) and lateral sway, (Delta), of the column. This leads to non-linear structural behaviour and can result in lateral deflections far in excess of those arising from lateral loading alone. We’ll explore the phenomenon and write some code to help visualise the behaviour.

Beam Deflection Calculator_cover | DegreeTutors.com

Building a Beam Deflection Calculator in Python

Python Projects, Structural Analysis / By Dr Seán Carroll

In this project, we’ll build a beam deflection calculator that can generate beam deflections by directly integrating the bending moment diagram. The technique we’ll use for calculating deflection in this project is not limited to statically determinate structures, although you will need a complete bending moment diagram to integrate. This project builds on our previous Shear Force and Bending Moment Calculator project. So at the end of this project, the final result will be a complete beam analysis code that calculates beam reactions, shear forces, bending moments and deflections.

Macauley's Method_Post-Image | DegreeTutors.com

Macauley’s Method for Fast Beam Deflections

Structural Analysis / By Dr Seán Carroll

In this tutorial we’re going to revisit the topic of deflection calculation and introduce Macauley’s Method. We’ll again rely on integrating the differential equation of the deflection curve, except this time we’ll speed the whole process up considerably by using Macauley’s method. This technique is also sometimes known as the Singularity Function method. We’ll work our way through some examples that will leave you well placed to apply Macauley’s Method on your own. We’ll also write a couple of helper Python scripts along the way to make our lives a little easier.

Shear and Moment Calculator Playlist | DegreeTutors.com

Building a Shear Force and Bending Moment Diagram Calculator in Python

Python Projects, Structural Analysis / By Dr Seán Carroll

In this project we’re going to build a Shear Force and Bending Moment Diagram calculator using Python in the Jupyter Notebook development environment. Generating the shear force and bending moment diagram for a simple beam with anything other than basic loading can be a tedious and time-consuming process. Once you finish this project, you’ll have a calculator that can produce shear force and bending moment diagrams at the push of a button.

Building a Mohr's Circle Calculator | DegreeTutors.com

Building a Mohr’s Circle Calculator for Stress Analysis in Python

Python Projects / By Dr Seán Carroll

In this Python project we’re going to build a Mohr’s Circle calculator. By the end of this project, you will have built your own stress analysis Python code. Along the way we’ll cover all of the fundamental topics that lead up to Mohr’s circle of stress. You will learn about how we use the 2D stress element to represent the state of stress at a point, the purpose of stress transformation equations, principal stresses and principal planes planes and of course Mohr’s circle!

Truss Analysis using the Method of Joints and Method of Sections

Structural Analysis / By Dr Seán Carroll

In this tutorial we’re going to focus on trusses, also known as pin-jointed structures. We’ll briefly discuss their key features and methods of analysis. We’re going to start at the very beginning by briefly considering what exactly a truss is – but we’ll very quickly move on to truss analysis and demonstrate the joint resolution method and method of sections with some worked examples.

Tintagel-Bridge-Render | DegreeTutors.com

Finite Element Analysis and Structural Behaviour Modelling Case Study

Structural Analysis / By Dr Seán Carroll

In this post we will use the Tintagel footbridge as a case study to explore structural behaviour and show how we can build up an understanding of the structure through analysis of increasingly refined finite element models models. We’ll apply this iterative approach by starting with a simple beam model and incrementally working towards a full 3D finite element model. Throughout this post we’ll make use of finite element analysis codes developed in DegreeTutors courses.

Calculating Beam Deflection from First Principles

Structural Analysis / By Dr Seán Carroll

In this tutorial we’re going to explore beam deflection and see how we can calculate the deflection of any beam from first principles using the differential equation of the deflection curve. We’ll work our way through a numerical example before discussing how we can use superposition along with tabulated formulae to speed up the process of calculating beam deflection.

Truss Analysis using the Direct Stiffness Method

Structural Analysis / By Dr Seán Carroll

In this tutorial we examine the Direct Stiffness Method and work our way through a detailed truss analysis. By the end of this complete introduction, you should understand the basic ideas behind why the method works, how to implement it for truss analysis and you should understand the power and scalability of the technique. Once understood, the direct stiffness method opens the door to structural analysis of large scale complex structures.

Dr Seán Carroll

Simulating crowd vibrations using the Duhamel Integral

P-Delta Analysis and Geometric Non-linearity

Building a Beam Deflection Calculator in Python

Macauley’s Method for Fast Beam Deflections

Building a Shear Force and Bending Moment Diagram Calculator in Python

Building a Mohr’s Circle Calculator for Stress Analysis in Python

Truss Analysis using the Method of Joints and Method of Sections

Finite Element Analysis and Structural Behaviour Modelling Case Study

Calculating Beam Deflection from First Principles

Truss Analysis using the Direct Stiffness Method

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