element type

[Emiliano_P]

hello to all, I apologize for what will probably look like a trivial and perhaps stupid question to you. Unfortunately I'm not practical with ansys, and I've never had a chance to use it during my university studies... now I try to make up, aware that it will take a long time. I begin to have doubts about the parameters I have to set in preprocessing phase, and the first is precisely related to the choice of the type. I press that I did some research, but I couldn't take away my doubts. Ultimately, I realized that the finite element and the number of nodes per element (just if I'm wrong, I'm begging you), but I don't understand why there are so many of them and why for every element type I have so many options. What changes for example if for 8node183 I choose the option "plane strain" instead of "plane strs w/thk"?

 

[GunMaker]

I understand what you mean... I send you back as a student to the first weapons ^_^ ... of elements there are so many because there are so many needs and contexts in which they are used...for example it is better to use a 20 knots instead of an 8 knots where there are carvings or curved surfaces because the order of the polynomial that is the basis of the element (the one that defies the more weight of the ..so you will have to consider case by case if to adopt a few refined elements or more simple elements....as far as thickness ... refers to the thickness of the sheet you are defining...that is, are you considering a plan or a plate with a certain thickness? If you are considering the sheet with thickness... what thickness has ? these are the differences...and I assure you that there are many ...I recommend you read the help x any doubt and to filter the information to you useful

 

[Emiliano_P]

Thank you for the simple and exhaustive answer. I am now studying through the nakasone, but maybe there are better and more detailed texts, if you have suggestions are well accepted. Thanks again

 

[volaff]

take a look at this:
www.danielecortis.it/sapienza/appunti-exercizioni-guida-ansys-12.pdf