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  1. LIAM_7

    Static equilibrium check according to 13445-3

    Dear all, First of all thanks for taking the time to read my post. I am doing the checks of direct route, EN 13445-3.But not sure if I should include de static equilibrium check or not, actually, not sure if it makes sense. The design is a kind of pressure vessel, with a lug type support...
  2. LIAM_7

    fatigue analysis to obtain the damage of a given number of cycles

    Hi TSG4, I was now expecting the answer I found you provide several times in the forum: pay for an expert :) Have a nice day BTW first question is related to ANSYS software...no need to read a single word from 13445 to answer it...
  3. LIAM_7

    ANSYS and fatigue analysis

    Dear all, First of all, thanks for taking the time to check my thread. I am a beginner with fatigue analysis. I need to obtain damage due to the application of 40.000 cycles of pressure inside a pressure vessel. I am using ANSYS Mechanical for this. The thing is that I can carry out a static...
  4. LIAM_7

    fatigue analysis to obtain the damage of a given number of cycles

    Hi TGS4, Thanks for your advice and for telling me what I have to do. Do you have an answer/recommendation related to the specific questions posted? Thanks
  5. LIAM_7

    fatigue analysis to obtain the damage of a given number of cycles

    Thanks Morcuse for your answer. Do you have an answer to the questions posted? Thanks!
  6. LIAM_7

    fatigue analysis to obtain the damage of a given number of cycles

    Hi hacksaw, Thanks for your answer, but I don't get the answer to my questions: 1. Is it possible to impose a given number of cycles after a static structural analysis in ANSYS Mechanical to obtain the damage due to fatigue phenomena produced by this given number of cycles? In other words, I...
  7. LIAM_7

    fatigue analysis to obtain the damage of a given number of cycles

    Hi TGS4, Thanks for your answer. I am following 13445-3 Direct Route. Maybe I am wrong, nut the text mentions a procedure to obtain N (number of cycles)based on strcutural stress, correction factors (welded and unwelded regions...), but I didn't understand how to apply a certain number of...
  8. LIAM_7

    fatigue analysis to obtain the damage of a given number of cycles

    Dear all, First of all, thanks for taking the time to check my thread. I am a beginner with fatigue analysis. I need to obtain damage due to the application of 40.000 cycles of pressure inside a pressure vessel. I am using ANSYS Mechnical for this. The thing is that I can carry out a static...
  9. LIAM_7

    safety factor and linearized stresses

    Thanks for your comments and your advices to search a mentor. Unfortunately, I am not able to get one, si I need to learn this by myself, so I really appreaciate your comments. I have read about 20 papers on the topic just to get informed, but still have some doubts. I am doing an assessment...
  10. LIAM_7

    safety factor and linearized stresses

    Thanks for all the support. Finally, I got a converged solution (this is supposed to be enough for one of the criteria specified in the code). I realized that I have imposed loads for operating pressure, hydorstatic pressure, fixed support and gravity, but it seems that the code multiply this...
  11. LIAM_7

    safety factor and linearized stresses

    Thanks for the answers DrivemeNuts and TGS4. I would like to explain better: when I talk about Safety Factor I do not refer to the norm. I am talking about the safety factor contours provided by ANSYS Mechanical. And for the loads applied (850 bar+hydrostatic pressure), the Safety factor is...
  12. LIAM_7

    safety factor and linearized stresses

    Dear all, I am new in ASME BV FEM based analysis. I have a couple of questions: 1. Is it mandatory to go for elastic-plastic analysis if R/t<4? 2. I have carried out a elastic analysis in a situation of R/t=1,4. The results based on linearized stresses allows the tank to pass (according to...
  13. LIAM_7

    ANSYS earthquake analysis

    Hi guys, Has anybody used this norm(SIA 261) to perform earthquake analysis on a structure based on ANSYS modal analysis+response spectrum? Can you provide any reference on this (paper, tutorial....whatever)? I guess I know how to solve it but just to make sure I do not miss any important...
  14. LIAM_7

    ANSYS

    Hi guys, Has anybody used this norm(SIA 261) to perform earthquake analysis on a structure based on ANSYS modal analysis+response spectrum? Can you provide any reference on this (paper, tutorial....whatever)? I guess I know how to solve it but just to make sure I do not miss any important...
  15. LIAM_7

    Dear experts, I am a beginner wi

    Dear experts, I am a beginner with ANSYS Mechanical. I worked a lot in CFD with FLUENT, CFX, ANSYS ACT (acoustics)...so I am familiar with the GUI and the Workbench environment. I am trying to simulate a load on a hinge with static structural analysis. Load of 500 kg, applied on an 50 mm long...

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