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That was exactly what I meant [smile].

I am also unfamiliar with the software, but I saw something in IDS post. Exponent 50, if that means numbers with 50 zeros you may have have numerical issues.

The terminology may differ a bit depending on the software. I work with all-purpose FEM-software and "Linear Elastic Buckling" is an eigenvalue problem. If you take "Euler buckling" it is the same thing. So, you can test the accuracy of the solver by modelling the basic Euler cases for members...

You mention "Some scientists", do you have a reference for this idea?

I would use a software that allows me to model the beams with plate elements. Then the tapered beams can be modelled correct and stiffeners and other "plates" can be included.

There is more in Eurocode then just shell stability. But regardless of it you use Eurocode or AISC, the purpose of the models (or equations) is to predict the strength (or stability) of a beam/column/structure. And the structure doesn't know what code you use [smile]. FEM. if it is set up...

I am not in detail familiar with AISC. But in my experience FEM is often used to calculate a critical buckling stress. Then you can use models in the code to get allowable stresses. The key is to use the correct imperfections and I usually base them on buckling modes. That means that you...

I don't know what you are after here but to use a buckling factor from a linear buckling analysis won't work. As you say yourself, there is no strength involved in that analysis. What you can do is to use it to determine a "critical stress" for a plate or a "buckling length" for a member and...

If I speculate a bit, could be completely wrong [smile]. When the load is applied you have a total strain that consists of an elastic part and a plastic part. When you unload the elastic part should disappear but could not that change result in an increased plastic strain at another location. I...

I agree. I think the interesting part now will be how this plays out in the courts. There is a lot of money involved.

I have followed the tread since the beginning but not read everything in detail. But I have one question. Early in this there were some statements regarding this being intentional. I am not interested in different conspiracy theories, but has there been any reliable information regarding this...

I was involved in a project with water frezing a few years ago. A number I remember is that when water is confined and starts to expand (freeze) there is a pressure of more than 1000 MPa. Or, you create room for the expansion [smile].

The refineries I have worked with are often quite different from Waste water treatment plants. Some equipment are the same but the process is different. But what is it that you are changing in your work? Is it the technical part that you now want to work with a chemical plant? Or, is it the role...

This may be wrong but I assume that you are describing your own experience [smile]. What, in your experience, was the difference between the refinery and the water/waste water plant? What I am after is what you consider to be a difference? And, why are you so interested in these specific areas...

I have been involved in all three and I don't think you can just say that one is more challenging than the other. They are different, that's all. But if you compare them to other types structures there are things that makes them different. There are usually more dynamic loads than in a...

I think that AI may in the future be able to assist with things like that. One challenge will probably be how to describe the task to a computer. I think that is the main thing with AI. To be able to communicate with a computer as you do with a human. That is also what the Turing test is about...

Okey, I understand, you have your own definition of "AI". That explains it [smile]. By that definition I think any software can be considered "AI" since software usually has the purpose of simplifying somebodys work. But I will continue to use more common definitions of "AI". An early approach...

Just out of curiosity, What structural engineering software have you used that you consider to be "AI"? I have not seen any that I would label in that manner. Or perhaps I misunderstood your statement?

I can't help wondering, how big are the stone blocks and what is the purpose of the design? I assume that it is safety but safety against what?

When working with modifications of existing structures measured data is always valable. But most of the work I do is not with existing structures. It has been an interesting discussion. But I think that to have any more ideas regarding the original question the OP must provide some input.