Flow Chart: Do I need contact

Download the printer-friendly version here, and read the user guide below! We will tackle contact here. If you haven't read my posts on nonlinear supports and how to avoid contact you may find them interesting : ) This is not the first flowchart that I posted here. You can also check flow charts for nonlinear [...]

Flow Chart: Do I need contact

Choosing FEA software and good options you want to have in it!

A few days ago Josh sent me an email with a question about choosing FEA software. And I realized I've never actually written about it. Time to fix it I guess : ) But since I'm experimenting with videos (let me know what you think!) I've made this one about it: https://www.youtube.com/watch?v=Gq0YFTQuVL8 There are different [...]

Choosing FEA software and good options you want to have in it!

Different types of analysis in FEA: beyond linear static!

https://youtu.be/inVGiGzmii0 As promised in the video, you can get my free FEA essentials course. and free nonlinear FEA introductory course! Different types of analysis in FEA (text) Just so you know: this will take around 15 min to read. As I wrote recently this year I want to help you gain confidence in the FEA [...]

Different types of analysis in FEA: beyond linear static!

Stress singularity – an honest discussion

Arjen asked me recently about stress singularity. There are quite a few articles about this issue already (it is a common problem I think). But I want to bring something to the discussion as well : ) Stress singularity basics I'm sure you have heard about it, so I will be brief. Stress singularity is [...]

Stress singularity – an honest discussion

Do you need to know math behind FEA?

Recently I asked a lot of my subscribers what they think is the most difficult thing in FEA. While "interpreting results" or "too much theory in materials" appeared quite often, I also got several answers like: My biggest obstacle is actually understanding the mathematical concept behind it. Although I am really interested in the application [...]

Do you need to know math behind FEA?

Design for stress, strain or rigidity?

This topic was on my mind (and on my to-write list) for a very long time. Finally, I had the time to organize what I want to write about it in my head. I wonder what is your take on this matter - be sure to leave a comment below! What does it mean to [...]

Design for stress, strain or rigidity?

Few thoughts on FEA projects

This is a very special day for me, as I just launched a first paid online course on Enterfea. It took me more than half a year to make it, so naturally, I started reflecting on that process. I realized that there are a LOT of similarities between making something like an online course and an [...]

Few thoughts on FEA projects

Member design in FEA

I got a really interesting question on my email from Fateme. I wanted to address this issue so many times now, so finally there is a great occasion to do this! In Abaqus, can we review the capability of a structural member? Whether or not it can bear the load like: shear, bending, twisting, axial [...]

Member design in FEA

FEA results verification with hand calculations: stability

Last time I described 5 steps to FEA results verification. Among those steps were FEA results verification with hand calculations. I figured it makes sense to expand on this idea. Especially since Luke asked me about something on this topic via email. Luke asks: How is the eigenvalue calculated, can this be done longhand? Can [...]

FEA results verification with hand calculations: stability

Symmetry in FEA may be dangerous

Symmetry in FEA is great, as it reduces the size of the task. This, in turn, shortens the computing time. Computing time is still a big issue, especially when you run complex models. Without a doubt, this is why using symmetry in FEA is so popular. There is a catch to this, however, as you [...]

Symmetry in FEA may be dangerous

Changing active forces for enforced deformations and vice versa

I have seen many mistakes where people wrongly changed enforced deformations with active forces. In some cases, this is a simple task, which gives beginners the feeling that they can always do it easily. This, in turn, leads to various mistakes in analysis. I think it is worth discussing this, to point out common mistakes [...]

Changing active forces for enforced deformations and vice versa

What is FEA for?

There is a lot of talk about Finite Element Analysis in engineering. Whatever you try to learn or whichever engineering field you have chosen - FEA is waiting there for you! For me, Finite Element Analysis was the tool that literally transformed my career. I'm pretty sure it can be just as important for you. [...]

What is FEA for?

Finite Element Analysis workflow

When I first started working with Finite Element Analysis (FEA) I had a huge problem in understanding what to do. I had a basic engineering knowledge but I simply did not understand what was the order of the steps. Suddenly the software had many "modules" and each was screaming at me that some data is [...]

Finite Element Analysis workflow

Correct mesh size – a quick guide!

Mesh size is one of the most common problems in FEA. There is a fine line here: bigger elements give bad results, but smaller elements make computing so long you don’t get the results at all. You never really know where exactly is your mesh size on this scale. Learn how to choose the correct [...]

Correct mesh size – a quick guide!

Linear buckling in plain language!

Buckling is a dangerous phenomenon. It can lead to catastrophic failure of a structure, even if stresses are far smaller than yield limit. You can use linear buckling analysis to verify structural stability. In this post, I will discuss positive aspects and limitations of linear buckling. […]

Linear buckling in plain language!
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