Solution & Load Combination in ANSYS
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- เผยแพร่เมื่อ 19 ก.ย. 2024
- This Video presents solution combination in ANSYS. It highlights how to perform addition and subtraction for different solution deck. it also highlights nozzle shell junction FEA analysis.
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Nice presentation and very useful thank you so much
Thanks and welcome
That's very well presented.. thanks for the video .. Can you make video on fracture mechanics highlightening on J integral .
Welcome, share your problem definition.
hi, can you do a Von-misses stress combination of 3-sigma stress from Random Vibration analysis and a static structural analysis. Assume a beam at fixed boundary where a PSD can applied and then in static structural analysis a torque value (moment load along the axis of the beam) is applied. How do we combine the stress from these two studies? 3-sigma von-misses from RV and von-misses from static structural?
Thanks.
hello, You can use solution combination and follow the same deck for both random vibration and static.
Very nice and well presentation. Thanks for the video. Can you explain the UDF for other load cases and combination?
Thank you..Other load combination will done as same as explained in video. Let us know if you have any specific combinations
in case of ratcheting assessment like in ASME Section 8 Div 2; how to do that where we load and unload multiple times and calculate the cumulative stress? is it same?
Present video is for solution combination not for ratcheting assessment. For ratcheting you can do by defining load step within solution deck.
Thanks a lot sir.
Really helpful video.
Most welcome
It's better to use analysis steps for getting different load combinations. The only thing you need to do is activate/deactivate the load at desired time step.
Yes, you can do that way but for acceleration loading deformation animation will behave differently.
How to get ultimate load value from ansys.. is von- mises stress represents ultimate load value?
ANSYS just give you the failure point in terms of values such as mim to max values in terms of legend. You need to check the stresses at yield and ultimate point to decide the yield or ultimate failure.
thak you so much. It's very helpful. We have a load case of seismic (response spectra results). Stresses due to them have both sign + & - , it become very difficult to add those stresses on component basis (as 64 combinations will be there). Can you help us with that. It will be very helpful. Thank you 😊
If you have seismic results such as spectrum in X, Y Z axis you can use SRSS or Newmark method (user define function) to combine them. For multipoint RSA, you can use user define equation (sum of all the decks) to combine results of individual RSA analysis.
Thanks for this video
Most welcome
Do you have any example related to seismic analysis. Please share the link if it is available.
Yes, we do have videos on response spectrum or seismic analysis (Please visit our channel page, th-cam.com/video/G1ziw2U0XZ4/w-d-xo.html)
Hello. Nice video and its insightful. Could you please share the reference ASME section details ? In which section it is specified ? that would be really helpful.
You can refer to ASME section VIII div 2, part 5, you will find different load combination for elastic, elastic plastic and limit load analysis;
@@graspengineering9249 Thanks a lot for your help
If we apply Both Pressure and Forces in one Load case, will that give same results?
Yes, it will as same results of addition of pressure & forces. But for individual pressure & forces have different results.
Make video plastic limit load applied on nozzle shell junction BASED ON ASME VIII DIVISION II
We already covered plastic collapses by elastic approach. Will try for limit load too.
Hi thank you for this. But can you please do one with response spectrum analysis?
Welcome. Please check, we already uploaded response spectrum analysis video in our channel page.
How can we combine the solutions of thermal and pressure loads into one solution?
You can add both load case or else apply pressure and temperature loads in single load step
Thank you so much for sharing this video, log back I have requested you for loading combination..
Welcome !
Thank you ..
You're welcome
Hello im doing simulation of à structure witch must resist to sismic load.
I wanted to know how we can combine the load cases
PW(proper Weight) + SQRT (Fx ^ 2 + Fy ^ 2 + Fz ^ 2)
PW-SQRT (Fx^2 + Fy^ 2 + Fz ^ 2)
You can use user defined function for the SRSS or others methods seismic combination method.
How to create user-defined results ?
You can create user define results from solution and then define the respective equation. Example You can define SEQV for equivalent stress in user define expression.
Thanks for the video
Welcome !