why i cannot change the material properties from linear to non linear?
@endeavos Жыл бұрын
I didn't get your question. Can you elaborate it?
@nuraisyahsamsul2831 Жыл бұрын
@@endeavos sorry, i get it now, i want to change my question, what is the different between force based and displacement based analysis, and why both of analysis we get the similar result? Another question, why i cannot get the graph like you did? I m getting straight line. 😣
@endeavos Жыл бұрын
@@nuraisyahsamsul2831 In the force based analysis, we apply a force to initiate buckling which results in displacement whereas in the displacement based analysis, we apply displacement to initiate buckling. Both methods will give you the same buckling load, however, force based methods run into convergence problems. Displacement based loading is preferred because it will also show you post buckled behavior of the structure.
@endeavos Жыл бұрын
@@nuraisyahsamsul2831 Regarding the second question, can you tell me what example or problem you are referring to?
@user-zv4hg8me5r Жыл бұрын
Dear sir, thanks for a brilliant video. I'm wondering if it can couple two buckling mode shapes?
@endeavos Жыл бұрын
In some cases two buckling loads can happen successively as the buckling load is increased. Is that what you mean?
@drury2d8 Жыл бұрын
16:16 I think the scale factor is not 15 mm, rather is 15 times the deformation of the linearized eigenmode shape. Please correct me if im wrong here.
@endeavos Жыл бұрын
The linear buckling load is normalized to unit deformation. So I can use scale factor = deformation.
@balar1804 Жыл бұрын
For Non linear thermal buckling , how to find the critical buckling temperature
@endeavos Жыл бұрын
Temperature can impact young's modulus if you have defined it as function of temperature. Buckling can happen at any temperature. There is no set "buckling temperature". If you want to find how buckling load varies with increasing temperature, you may have to run this simulation at different temperatures by inserting temperature as a load. You can use the temperature as a parameter and run this simulation at different temperatures to determine buckling load as a function of temperature.
@balar1804 Жыл бұрын
@@endeavos i assumed temperature is constant, only temperature varies across the thickness.
@rayhansaiafbin8898 Жыл бұрын
The way you have presented multiple buckling types in one single video is awesome. Hats off.
@endeavos Жыл бұрын
Glad you liked it!
@Whuatsefuck Жыл бұрын
Hello nice video! Can you upload a tutorial of how you modeled it?
@gunner4238 Жыл бұрын
Hi, I am confused how you came up with the scale factor at 16:16, and does this work on all geometry like corrugated walls?
@endeavos Жыл бұрын
Hi Benjamin. The scale factor is based on the manufacturing tolerance and as structural designer, it is basically your choice. If you want to be conservative, you can use the max tolerance. In this video, I followed the DNV's recommendation. Please see the document DNV-RP-C208. Thanks!
@gunner4238 Жыл бұрын
@@endeavos Thanks for the information! Can I also know which section did you get the value from? And another question I would like to ask is: In my project, I need to apply both hydrostatic and constant pressure onto a corrugated wall. When I get my eigenvalue, do I multiply the eigenvalue to both pressure or just the constant pressure? Thanks in advance!
@thymeteller6837 Жыл бұрын
Dear sir, thank you so much for a very comprehensive video, I was wondering which statement in DNV-RP-C208 implied that the capacity is "200 ish" kN, as you mentioned at 37:50 mins. of the video.
@endeavos Жыл бұрын
Thanks for watching. The ~200+ KN is the estimated capacity based on DNV's chart. it is marked right there on Fig B-17.
@mikeb10974 ай бұрын
@@endeavosThe ~210 kN is not the 'allowable limit' based on the non-linear buckling. The 210 kN is the unfactored capacity from the previous example which was based on LBA and empirical buckling curves. The design capacity from NLA is the max value on the chart divided by all relevant safety factors (load and resistance) based on whatever code you are working to.
@MuhammadTanveer-dr8kb Жыл бұрын
Can you please share the model?
@ishanmanoj5379 Жыл бұрын
can you please add a video of cohesive zone modelling of single lap adhesive joints using cohesive element
@endeavos Жыл бұрын
I am working on a detailed video of CZM. It will take some time because I have to present the background theory as well so the audience can understand
@deeptiranjanmohapatra7700 Жыл бұрын
Can you tell me what were the interaction you have given between plate and adhesive ? And How are you managing large scale deformation of adhesive element around the edges.
@endeavos Жыл бұрын
Thanks for your comment. I'll have a detailed video on carrying out a bonded joint analysis soon.
@Whuatsefuck Жыл бұрын
@@endeavos Nice work! can you upload a video how you did this model?
@endeavos Жыл бұрын
@@Whuatsefuck Thanks for your comment. I am working on it.
Пікірлер
its a very nice work! could you upload the process of this modeling?
The results I calculated are very different from those in your video. I hope to find the issue from your model.
Wonderful Endeavos! Thats what i needed to finish my analysis of a wing spar👏🏾👌🏾
Go on, please!
thank you so much for sharing your knowledge, it was a great video, I really enjoyed it.
Awesome sauce
Thank you very much for this clear explanation! Could you be so kind as to share the link with models' geometry?
Are there any specific guidelines on defining the number of steps/substeps (initial, minimum, and maximum), plus Step End Time?
nice explanation
Thank you Endeavos Innovations. A great presentation.
Great video! Thanks!
Glad you liked it!
@@endeavosThank you very much for this clear explanation! Could you be so kind as to share the link with models' geometry or the final ansys file ?
How do i scale it i didn't understood and i am getting the normal deformation not at center but at top how shall i change it
Hi, can i have your email, i want to ask about my problem regarding my project
Sure, its [email protected]
why i cannot change the material properties from linear to non linear?
I didn't get your question. Can you elaborate it?
@@endeavos sorry, i get it now, i want to change my question, what is the different between force based and displacement based analysis, and why both of analysis we get the similar result? Another question, why i cannot get the graph like you did? I m getting straight line. 😣
@@nuraisyahsamsul2831 In the force based analysis, we apply a force to initiate buckling which results in displacement whereas in the displacement based analysis, we apply displacement to initiate buckling. Both methods will give you the same buckling load, however, force based methods run into convergence problems. Displacement based loading is preferred because it will also show you post buckled behavior of the structure.
@@nuraisyahsamsul2831 Regarding the second question, can you tell me what example or problem you are referring to?
Dear sir, thanks for a brilliant video. I'm wondering if it can couple two buckling mode shapes?
In some cases two buckling loads can happen successively as the buckling load is increased. Is that what you mean?
16:16 I think the scale factor is not 15 mm, rather is 15 times the deformation of the linearized eigenmode shape. Please correct me if im wrong here.
The linear buckling load is normalized to unit deformation. So I can use scale factor = deformation.
For Non linear thermal buckling , how to find the critical buckling temperature
Temperature can impact young's modulus if you have defined it as function of temperature. Buckling can happen at any temperature. There is no set "buckling temperature". If you want to find how buckling load varies with increasing temperature, you may have to run this simulation at different temperatures by inserting temperature as a load. You can use the temperature as a parameter and run this simulation at different temperatures to determine buckling load as a function of temperature.
@@endeavos i assumed temperature is constant, only temperature varies across the thickness.
The way you have presented multiple buckling types in one single video is awesome. Hats off.
Glad you liked it!
Hello nice video! Can you upload a tutorial of how you modeled it?
Hi, I am confused how you came up with the scale factor at 16:16, and does this work on all geometry like corrugated walls?
Hi Benjamin. The scale factor is based on the manufacturing tolerance and as structural designer, it is basically your choice. If you want to be conservative, you can use the max tolerance. In this video, I followed the DNV's recommendation. Please see the document DNV-RP-C208. Thanks!
@@endeavos Thanks for the information! Can I also know which section did you get the value from? And another question I would like to ask is: In my project, I need to apply both hydrostatic and constant pressure onto a corrugated wall. When I get my eigenvalue, do I multiply the eigenvalue to both pressure or just the constant pressure? Thanks in advance!
Dear sir, thank you so much for a very comprehensive video, I was wondering which statement in DNV-RP-C208 implied that the capacity is "200 ish" kN, as you mentioned at 37:50 mins. of the video.
Thanks for watching. The ~200+ KN is the estimated capacity based on DNV's chart. it is marked right there on Fig B-17.
@@endeavosThe ~210 kN is not the 'allowable limit' based on the non-linear buckling. The 210 kN is the unfactored capacity from the previous example which was based on LBA and empirical buckling curves. The design capacity from NLA is the max value on the chart divided by all relevant safety factors (load and resistance) based on whatever code you are working to.
Can you please share the model?
can you please add a video of cohesive zone modelling of single lap adhesive joints using cohesive element
I am working on a detailed video of CZM. It will take some time because I have to present the background theory as well so the audience can understand
Can you tell me what were the interaction you have given between plate and adhesive ? And How are you managing large scale deformation of adhesive element around the edges.
Thanks for your comment. I'll have a detailed video on carrying out a bonded joint analysis soon.
@@endeavos Nice work! can you upload a video how you did this model?
@@Whuatsefuck Thanks for your comment. I am working on it.
@@endeavos when when
@@endeavos 👀