Łukasz Skotny is the owner of Enterfea. This company is somewhat an extension of his dreams. Dreams about better engineering worldwide, but also about self development and reaching more and more distant goals. Łukasz strongly believe that engineering is a beautiful art - he tries to deepen his knowledge to see more of that beauty, but also share this view on this blog by explaining what he finds interesting in engineering and FEA.

## Can You do Finite Element Analysis by Hand?

It's the beginning of 2009. I'm sitting in one of the lectures of my Ph.D. program. Finally, we will start to learn about Finite Element Method! My company is slowly developing, and I'm really hopeful that this will allow me to spread my wings! And then professor says: "let's start with basic matrix operations"... You [...]

Can You do Finite Element Analysis by Hand?

## Difference between linear and nonlinear elastic material

A few years ago I wrote an article about various nonlinear material models. Since I'm a civil engineer to me the obvious dividing line was: linear = no yielding, nonlinear = yielding. But of course, there is far more than that! Today let's take a look at a nonlinear elastic material. Both linear and nonlinear [...]

Difference between linear and nonlinear elastic material

## What are the Types of Elements Used in FEA?

I started paying attention to meshing way too late I think. When I started my Ph.D. I literally divided elements into two categories: those that throw errors and those that don't! But even then I was lucky - I could simply check scientific papers on similar topics and use the elements that someone else used before. [...]

What are the Types of Elements Used in FEA?

## What’s the Difference Between FEA and CFD?

I got lucky (I think!). At an early point in my career, I realized I won't be able to learn everything there is to learn. Instead, I will focus on what I consider "fun" while giving myself some ease about other things. This is why there aren't any CFD articles on the blog - I simply don't [...]

What’s the Difference Between FEA and CFD?

## Why is a Triangular Element Stiffer?

Somehow I never used triangular elements. Not that I knew why TRI are "bad". I think I just didn't like how they look (!). This saved me quite some trouble, proving that sometimes having luck (let's call this a gut feeling shall we?) really helps! But you don't have to rely on a gut feeling - [...]

Why is a Triangular Element Stiffer?

## The Difference Between Linear and Nonlinear FEA?

I remember my first presentation regarding my Ph.D. It was my first year on the doctoral program, and I was starting to be on a first-name basis with people that were my teachers just a semester ago. I went to the middle of the room and started talking about shell buckling... the problem was everything [...]

The Difference Between Linear and Nonlinear FEA?

## How Accurate is Finite Element Analysis?

FEA accuracy is a topic that often provokes discussions. Without a doubt, there are FEA evangelists (I would include myself to the group!) and FEA disbelievers. So, let's take a look and wonder how accurate is Finite Element Analysis. FEA is almost like a calculator: it's as accurate as its user. But it's also quite [...]

How Accurate is Finite Element Analysis?

## What are Nodes and Elements in Finite Element Analysis?

Nodes and Elements are the very backbones of Finite Element Analysis. You will use them in every analysis you will perform in FEA, so learning about them seems like a good idea! So, what are Nodes and Elements in Finite Element Analysis? In FEA, you divide your model into small pieces. Those are called Finite Elements [...]

What are Nodes and Elements in Finite Element Analysis?

## Choosing an FEA course

To be honest I avoided this topic for quite some time. Every now and then someone asks me about it, so clearly I should write a post. But the fact that I do my own online FEA course means that this may be received as an advertisement rather than advice. To "deal with it" I [...]

Choosing an FEA course

## How to Interpret FEA Results?

Interpreting analysis outcomes is not simple. Even if you already have proper values from your FEA analysis, still you need to decide how to interpret FEA results. Let's take a closer look at how to approach this task! Firstly let's wonder how to interpret FEA results? In structural design, you have to perform several checks. Firstly, [...]

How to Interpret FEA Results?

## What Are Different Boundary Conditions In FEA?

It's relatively easy to perform an FEA analysis, but it's definitely difficult to run an analysis that produces reasonable outcomes. During my Ph.D. research, I've learned that boundary conditions are often the issue. Seemingly simple they can cause a lot of trouble for you - so let's wonder what are the proper boundary conditions in [...]

What Are Different Boundary Conditions In FEA?

## Math in FEA – do you really need it?

I never hid with my beliefs about math in FEA. But I figured I will ask around, just to make sure I'm not missing something : ) So today you get a chance to learn more about the subject! And it won't be only about my opinion on the matter but also what Tony Abbey [...]

Math in FEA – do you really need it?

## FEA on a new level! Or how to design an engine!

Some time ago I realized that I've got to know some amazing people in the last 2 years of blogging. Having so many great friends feels awesome, but I figured I will push it a bit further. This is the first interview I will post here, where I will discuss FEA related stuff with a [...]

FEA on a new level! Or how to design an engine!

## Nonlinear FEA + Snap-through with Tony Abbey

This time I have something super special! We have been discussing different topics with Tony Abbey (FEtraining and Nafems) for quite some time. And now we decided to shoot a few videos about things that interest us in FEA. On today's video, we will talk about different approaches to snap-through as a difficult case of nonlinear [...]

Nonlinear FEA + Snap-through with Tony Abbey

## Design rules vs Physics

This came out in one of the discussions in FEA guild, and I figured I will expand on this idea. This will also be useful for me later (and if I convince you, it may be useful for you as well). Instead of having this discussion with every Customer, I can simply direct them here [...]

Design rules vs Physics

## Blas Molero on Enterfea HERTZ Contact in FEMAP: CGAP elements

Hey people! I continue the trend of inviting some of the FEA-finest to write on the blog! This week none other than Blas Molero Hidalgo joined us with his awesome work! If you use Femap and you ever searched for an answer in google you know who Blas is. He has this superpower I don't [...]

Blas Molero on Enterfea
HERTZ Contact in FEMAP: CGAP elements

## FEA Design Tips #003

It's high time to make another one of those : ) I recently got caught up with some urgent designs, and those required revisiting some stuff I did several years ago... but I think I will feature this in future advice! Let's go with the tips! Pssst - there is also a video with those [...]

FEA Design Tips #003

## Great FEA report for the win!

I've recently posted a tip about writing good FEA report... and I must admit that what followed surprised me! This is the most discussed topic to date. Naturally, I figured I will expand some of my ideas into a longer post. Let's give it a try : ) FEA report: business or tech? I strongly [...]

Great FEA report for the win!

## Angus Ramsay on Enterfea: Large Thermal Strains in FEA

Ok, I'll admit it - I'm excited to host a post by one and only Angus Ramsay! Before we get to the post, let me just say that I actually have a chance to work with Angus on a book for Nafems (about FEA of course). So hopefully, you will see us (along with Nick [...]

Angus Ramsay on Enterfea:
Large Thermal Strains in FEA

## FEA Design Tips #002

Wow... it's the next week already O.o This means that it's another roundup post! I will always be a week behind on what we talk about in the Facebook group (even more reason to join it!). This is on purpose - I simply want to get all the insight and those awesome discussions that happen! This [...]

FEA Design Tips #002