FEM Helper is a channel created with the goal to help every student or researcher who needs a little help in computational analysis' softwares. We will use mainly Ansys to perform the Finite Element Analysis.
Ola! Neste momento preciso de simular no ansys uma ligação coluna placa de base fundação. Ja modelei e parametrizei no ansys, no entanto, está muito complicado correr a simulação. Eu pretendo aplicar um esforço axial, de maneira a verificar qual o valor máximo que a ligação aguenta sem ceder, no entanto, mesmo aplicando uma carga de apenas 1 N, o ansys nao me resolve e aparecem erros nos elementos altamente distorcidos :(:( Agradecia imenso a sua ajuda!
For one of my projects I am trying to do a structural analysis of an aqueduct which is basically a bridge with a higher angle arch in the bottom. Is the process of creating it the same since its going to be a solid wall or do you think it will be way different?
Hello oVersSkilleD, Your question is very interesting. Well, for the matter of fact, the process could be just like the one showed in the video, yet you will have to use shell elements to simulate the walls of the aqueduct. Using beam and solid elements in the same model is not recommended because multiple issues may appear, especially in the contact zones. My tip is: try to model the aqueduct with beam and shell elements first and run an analysis with the appropriate properties. Then, depending on the accuracy of the results, you may want to do it with solid elements. However, be aware that the computational cost with solid elements is way higher than with beam/shell. Thank you for your comment!
Hello Droid. I'm sorry, but I don't have the model now because I deleted it. However, it's very easy to perform this analysis. For the geometry just use line bodies and then apply cross-sections. For the other parts of the analysis you can just follow up the tutorial
Hey nice job! i'm an engineering student and i trying to make the modeling of a high voltage tower, but i have a problem with the pre and post because i use GiD, so my cuestion is if i can use ANSYS, but the codification with Matlab, that is, export and import only the strcuture to make the mesh (pre) and see the results (post). Thank you!
Hello Sir. Thank you for your comment. Well, the process of simulating the behaviour of a high voltage tower is very similar to the one I'm showing in this video, despite the difference regarding structural design. Well, I've never used MATLAB's interface in Ansys. Wouldn't it be easier if you started your project in Ansys from the beginning? You can create the points manually in Ansys and then assemble different cross-sections as you intend to.
Hello Pietro. Thanks for your comment. Actually, it is! However, the results won't be as accurate as in Ansys, especially if you're leading with non linear materials
Thank you for your comment. I already have one video about a welded connection using nonlinear materials. Probably, in the future, I will look into weldings again :)
Thank you for your comment. Well, the material used in this specific analysis is the standard non-linear steel available in Ansys. The tangent modulus of this material is already specified in the material properties. You can check that quickly by clicking on the "Engineering data" menu. Regarding the meshing and bolt-pretension, I'll be doing a video about that any time soon. However, do you have any doubt about the meshing and/or bolt pretension settings in this analysis?
Неплохо. Но если отключить показ сетки на результатах, картинка напряжений будет более наглядная. А так сетка ее затемняет. И еще, вектор силы можно масштабировать кнопкой Rescale Annotations. Спасибо за видео!
