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  1. evenjl

    Best way to weld/connect horizontal and vertical HSS-profiles

    I was interested in learning more about how you could join the members together. I have never tried to weld my self, but I have experience with design of connections with fillet welds. I work as a structural engineer and all my work in this project will be controlled by a 3rd party.
  2. evenjl

    Best way to weld/connect horizontal and vertical HSS-profiles

    Cheers. I live in Europe, so I guess the EN ISO Series about welding should give me some info. Load: Axial force (approx 200kN) + Moment due to load eccentricity. (Have a look at my sketch. Apologies for the crappy drawings. Not easy to draw on a smartphone)...
  3. evenjl

    Best way to weld/connect horizontal and vertical HSS-profiles

    Thanks for the replies. Much appreciated! I'm responsible for the design, i.e. I'm not the welder. My initial solution can be seen in the attached image. But smaller horizontal members might be a better and easier solution. Or I could drop the L-profiles and replace them with simple fillet...
  4. evenjl

    Best way to weld/connect horizontal and vertical HSS-profiles

    Hello all! Attached is a simple sketch of a steel frame. As I have no experience with welding, I was hoping I could get some advice from you guys. My question is; Can horizontal HSS profiles be welded directly onto the vertical profiles or do you need steel plates of some sorts? All the beams...
  5. evenjl

    Impact simulation and different hardening rules

    Hi guys! I am currently working on a project with stiffened aluminium plates subjected to impact loading with a hemispherical indenter. The simulations worked just fine until I tried a different hardening rule. I use power law in my base model, but some problems seem to arise when I try to use...
  6. evenjl

    Impact loading on stiffened aluminium plates

    Hi, As it turns out, more accurate (plastic) material properties in the stiffener has a big impact on the final results and I think it is safe to say that this explain most of the difference we have seen between the numerical and experimental data. (FYI: I am using double precision for the...
  7. evenjl

    Impact loading on stiffened aluminium plates

    Plot number 2 (indenter next to stiffener): As you suggested, something happens at approx. 10kN. I have checked the model and there is at this point plastic strains start to arise in the stiffener which also confirms your "theory" that the model is correct up until yield stress. I will go...
  8. evenjl

    Impact loading on stiffened aluminium plates

    Appreciate the help, StefCon! I expressed my self a bit unclear in the first post. The structure seem to be to stiff as long as the indenter hits the plate between the stiffeners, but too soft if the plate is hit on or close to the stiffener. (See the plots below. Leote4 = 20mm mesh and leote1...
  9. evenjl

    Impact loading on stiffened aluminium plates

    Hi guys, I am currently working on a project with stiffened aluminium plates subjected to impact loading in order to replicate ship collisions. A part of the project is to validate my numerical model with experimental data from previous tests. The model is pretty "basic": A 3d-deformable rig...
  10. evenjl

    Simulation of front beam in bending

    Thanks guys, I appreciate the help. Mustaine3: Yes, the real structure is softer. And yes, some buckling do occure, but not until half way through the experiment - I don't think this will justify the big gap alone. This is a quasistatic experiment - the cylinder is moving down about 10mm per...
  11. evenjl

    Simulation of front beam in bending

    Picture of the model
  12. evenjl

    Simulation of front beam in bending

    Thanks StefCon. I really appreciate the help. I have used the last week to read the manual and search the web for possible explanations to why my force-displacement data vary or deviate so much from the "real" data. I know there could be thousand of reasons for this, but I have tried my best...
  13. evenjl

    Simulation of front beam in bending

    Hello everyone! I am currently working on a project as an introduction to my Master thesis. I have spent some time doing tests on different beams in the lab and I now want to simulate some of them using ABAQUS. First off, I want to re-create a simple experiment with a simply supported beam...

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