Live data from Hacker News

Eighty Years of the Finite Element Method

link.springer.com

1–10 of 47 posts

Re: Eighty Years of the Finite Element Method

#2
Very nice summary paper on FEM! FEM has now become a key part of any physical product development process. I used to work in FEM area and few years back switched to unrelated software domains - so felt a bit of nostalgia reading the paper. Thanks for posting !

Re: Eighty Years of the Finite Element Method

#3
post #2

Very nice summary paper on FEM! FEM has now become a key part of any physical product development process. I used to work in FEM area and few years back switched to unrelated software domains - so felt a bit of nostalgia reading the paper. Thanks for posting !

I just skimmed this and I never worked in FEM but this really brought me back. I had the pleasure of meeting several of the people in the article (Hughes, Oden, Babuska, Demkowicz) and couldn’t help feeling some nostalgia as well.

Re: Eighty Years of the Finite Element Method

#5
post #3
post #2

Very nice summary paper on FEM! FEM has now become a key part of any physical product development process. I used to work in FEM area and few years back switched to unrelated software domains - so felt a bit of nostalgia reading the paper. Thanks for posting !

I just skimmed this and I never worked in FEM but this really brought me back. I had the pleasure of meeting several of the people in the article (Hughes, Oden, Babuska, Demkowicz) and couldn’t help feeling some nostalgia as well.

Great! Hughes, Oden and Babuška are three of my heroes. My work is in FEM, specifically, the theory of Mixed Finite Elements and Eigenalue problems, to which both Babuška made important contributions. Oden I know from elasticity for the most part.

Re: Eighty Years of the Finite Element Method

#8
My first programming role was on the back of work by an engineer in this article. The core of the solver was a FORTRAN implementation of a paper on p-convergence. It was really amazing seeing our software predict how a small crack in a part of an aircraft would propagate. The 3D model produced matched the photograph shared later.

The lead developer (at the time) once said that the biggest software failure we can have is not incorrect results, but incorrect results without the user knowing. This is probably why I am so bothered by silent failures in my big company role now.

Re: Eighty Years of the Finite Element Method

#9
post #8

My first programming role was on the back of work by an engineer in this article. The core of the solver was a FORTRAN implementation of a paper on p-convergence. It was really amazing seeing our software predict how a small crack in a part of an aircraft would propagate. The 3D model produced matched the photograph shared later. The lead developer (at the time) once said that the biggest software failure we can have…

I know it's not a simple answer, but how would you embed checks to flag or highlight potentially incorrect results to the user?

Re: Eighty Years of the Finite Element Method

#10
post #7

I'm not sure if there's a simple implementation of FEM (might be < 50 lines of code) to understand the virtual of the algorithm then.

The algorithm for linear PDEs usually boils down to some kind of meshing/discretization (often the hard part) to make a (usually sparse) linear system to solve using standard numerical methods. In the basic 1d, first-order case, it winds up being exactly the same thing as equivalent finite difference method.
Post reply on HN