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@isaac8224 Күн бұрын
Thank you
@JaafarAl-Nasire 18 күн бұрын
Dear Dr Sean Carroll Dynamo Sandbox offer great tools for visual programming using predefined nodes or python scripts, you can simulate optimize specific parameters or what ever you can imagen. your effort are great but i want to discuss this topic with you. please give me your thoughts and ideas Regards
@pingwincesarski8615 19 күн бұрын
There is life after death you idiot!!! This is the energy of the Shroud of Turin and the Manopello scarf!!!
@PauloFeuer 20 күн бұрын
cool is corvert to curve, use bevel
@ybothd Ай бұрын
Openseespy.basicForce(ele) returns [axial, moment1, moment2] require [axial, shear, moment]?
@DrSeanCarroll Ай бұрын
It returns, Axial force followed by moments at each end.
@adno5933 Ай бұрын
Can blender be used for membrane form finding and patterning process? Few years ago I used a specialist piece of software that did the job fine, but it was so expensive!
@DrSeanCarroll Ай бұрын
Form finding, yes, patterning I'm note sure. The capability is there but probably not out of the box. That could make for a great custom add on though.
@amirhosseinnamadchi8643 2 ай бұрын
Thank you for creating such an exceptional and insightful video. The content was truly world-class, and your clear explanations made complex concepts easy to understand. I appreciate the effort and expertise you put into making it. Keep up the outstanding work!
@DrSeanCarroll 2 ай бұрын
Hey, really appreciate the comment...thanks! Plenty more on the way 😉
@goranjekic9993 2 ай бұрын
When i run the function plotStructure(title), I receive the following error warning: module 'openseespy.opensees' has no attribute 'getNDM'
@DrSeanCarroll 2 ай бұрын
Hey - head over to the community forum on EngineeringSkills.com for support.
@khp695 2 ай бұрын
same problem here..... did you solve it??
@goranjekic9993 2 ай бұрын
@@khp695 Yes, I did. Previously my Openseespy version was not updated. Now I installed the laterst version of Openseespy (3.7.-something). It works on python 3.11. The same frame example works perfectly from the top to the bottom
@DrSeanCarroll 2 ай бұрын
@goranjekic9993 - thanks for following up with your solution in this thread.
@khp695 Ай бұрын
@@goranjekic9993 thanks a lot!! I also solved my problem by changing openseespy version.
@benveasey7474 2 ай бұрын
Looks great, Blender is a very adaptive tool - very good for Non-destructive workflows
@BuildSmartLearning 2 ай бұрын
Nice
@engmarx6987 2 ай бұрын
Last night I was checking out a tutorial with openseespy and gmesh in python, then I thought instead of gmesh maybe try blender. And this morning your video popped up.😊 Thanks for the great content.
@DrSeanCarroll 2 ай бұрын
Great...happy to help. Yeap, Blender is currently very underated as a tool for engineering modelling. You might find this interesting also... www.engineeringskills.com/structureworks 👍
@LuleAbdulkariim 2 ай бұрын
Really nice content
@daniilliliakov6588 2 ай бұрын
Amazing video and content mate! Immense work! Keep it up 👍
@DrSeanCarroll 2 ай бұрын
Appreciate it thanks 🙏
@AndersWang-n7z 2 ай бұрын
I want to register my account , but it prompts me to prove that I am not a robot. I did not see the pop-up proof method of clicking on images. How should I proceed?
@xelonix_ 3 ай бұрын
I'm very interested in this. I also worked a little bit on making something similar myself around 2 years ago for my 3D truss engine written entirely in python. Hoping you can also open-source this project so that people can also can also contribute to the code base.
@evanslion3548 3 ай бұрын
I love this. I've signed up.
@DrSeanCarroll 3 ай бұрын
Thanks...always appreciate your ongoing support!
@rubencarstens8164 3 ай бұрын
Love to see updates regarding this. Good to see you took a similar approach to using vertex groups. I have to admit this method is a lot more user friendly than what I suggested previously. Please keep working on this and keep up the good work, I Think this could be incredibly useful.
@DrSeanCarroll 3 ай бұрын
Thanks - yes I've been really pleased with the response so far, seems there's a good appetite for this!
@joshuat8742 3 ай бұрын
Super cool! Your on your way to creating an opensource Structural Analysis program to rival RISA and RAM Elements etc. I'm here for it!
@DrSeanCarroll 3 ай бұрын
Thanks...appreciate the support 👍
@engmarx6987 3 ай бұрын
Very interested
@bassmeo3937 3 ай бұрын
Definitely interested!
@Funcrol 3 ай бұрын
Love it!
@olivierocabitza1406 3 ай бұрын
Yes, please 🙏 love this (I think actually I’ve asked for this in one of my feedbacks at the end of a course)
@DrSeanCarroll 3 ай бұрын
Great! Thanks for the feedback
@davidstopponi7584 3 ай бұрын
Hola ING excelente. Saludos desde Colombia 🇨🇴🇨🇴
@NavalEngineerExplains 3 ай бұрын
Amazing course bro. I will do it and aplied to ship structure
@siddheshjaltare6077 3 ай бұрын
E value should be 200*10**^6 (kN/m2) not 200*10**6 (N/m2). Calculation do not match if we use 200*10**6 (N/m2). Please correct me if wrong. Thanks!!!
@viktor-platform 4 ай бұрын
Great tutorial! We recommend this all community members!
@atxlax 4 ай бұрын
Why did sympy not simplify the expression sx**2/4 - sx*sy/2 + sy**2/4 to ((sx - sy)/2)**2 ?
@julienbouchez5946 4 ай бұрын
Great video! I'm looking for a Python library to model sailboat rigs. Would you recommend OpenSeesPy for this purpose?
@DrSeanCarroll 4 ай бұрын
Hi, I'm afraid I'm not sure what's involved in a sailboat rig so difficult to say.
@julienbouchez5946 4 ай бұрын
@@DrSeanCarroll in short, rigs can be reduced to a combination of cable and beam elements in a 3D space, with particular focus given to buckling...
@DrSeanCarroll 4 ай бұрын
Sounds like a pretty complex analysis with plenty of non-linear behaviour...nice. So, yes, I believe you can accomplish such an analysis with OpenSees. The challenge will be validating your results - if you're implementing a novel or complex analysis in OpenSees, the scope for making errors with how you implement the libraries methods is quite big! My advise is to start by solving a much simpler problem (perhaps even one you have a known solution for) and then build up the complexity incrementally from there. Hope that helps - good luck!!
@drunkdonutboy 5 ай бұрын
This is the most thorough explanation of Mohr's circle. I was analyzing a mechanical shaft when I first learned this and thought the circle was representative of the cross section of the shaft.
@balaportejean7015 6 ай бұрын
How can I fix my jupyter notebook failed to fetch issue please?? Thanks a lot for this opportunity to learn!
@DrSeanCarroll 4 ай бұрын
If you head over and enrol in the project (for free) on EngineeringSkills.com, you can get support in our Q&A forum 👍
@CruzHernandezJoseJulio-ly3rt 6 ай бұрын
Si consideramos la idea general y(x)=Acos(kx)+Bsen(kx)+C+D y en el extremo libre ocupamos condiciknes de fronteea de V(L)=0 y M(L)=0 la carga critica cambia, resolviendo con el determinante
@abtinabiyari 6 ай бұрын
i can't Seismic Reliability with openseespy. Can you help me?
@neerajbhandari3219 7 ай бұрын
Why did you assume Tau_A downward in the stress element? Why isn't it upwards?
@JohnSmith-op4gd 7 ай бұрын
I really wish it had stated somewhere that you would need a membership to exceed a certain number of members and supports. I just spent hours typing values into Excel, only to find out I was never going to be able to simulate it anyway. I am extremely frustrate
@DrSeanCarroll 7 ай бұрын
Sorry about that John. If you follow this tutorial, you'll be able to pretty quickly build a truss analysis script that will allow your to model any size structure you like... www.engineeringskills.com/posts/introduction-to-opensees-and-openseespy You can also download the finished project once you register a free account. Seán
@S..u..n..i..l 7 ай бұрын
bro how did you get 3squareroot2?
@CatariCesar 7 ай бұрын
👍
@xAllMoMllAx 7 ай бұрын
Great video and well explained Can you do the structure of any plane, for example if I have an organic surface made in blender how can I do the structure for it?
@DrSeanCarroll 7 ай бұрын
Hey - thanks. Well it's really up to you how you want to model the structure to match your surface. Some knowledge of structures would be helpful for this.
@kamaukinyanjui671 8 ай бұрын
when setting up the x y coordinates for your node does it matter where your origin point is or is it more important to be consistent with your origin point?
@DrSeanCarroll 8 ай бұрын
Hey, it doesn't really matter where the origin point is, the only thing that matters is the nodal positions relative to one another. The model can be positioned with one of of its nodes at [0,0] or the whole model can be offset by any distance from [0,0]. I won't influence the analysis.
@willc9400 8 ай бұрын
Does the course directly demonstrate how adding a point load at any point along the catenary at an angle will influence its shape? Thanks
@DrSeanCarroll 8 ай бұрын
Hi, yes we work through applying point loads to a catenary…if you take a look at the course info page on EngineeringSkills.com…you’ll get a much better idea of what we cover 👍
@willc9400 8 ай бұрын
@@DrSeanCarroll thanks, I’ve just purchased the course! Are we also able to apply horizontal loads?
@DrSeanCarroll 8 ай бұрын
Great - welcome aboard! You can certainly apply them but it may provide very difficult to get the model to converge.
@kingsman3087 8 ай бұрын
how was this done on the golden gate bridge?
@DrSeanCarroll 8 ай бұрын
Extensive use of scale modelling combined with plenty of math.
@greatasam3790 8 ай бұрын
I never really understood stress analysis in mechanics of materials, but I've had to review it for machine design course and I must say that these set of videos are excellent. Thank you.
@danielmadeley2695 8 ай бұрын
Have you worked with Grasshopper and karamba3d before?
@daniprasetya6615 8 ай бұрын
Amazing explanation! Can we analyze a tetrahedron element with OpenSees? I was just wondering, is OpenSees capable of handling analysis like other professional software? Let's say ATENA or Abaqus, for example.
@DrSeanCarroll 8 ай бұрын
The big difference between OpenSees and more commercial software is it's lack of a GUI - I wouldn't say it's a direct competitor to something like Abaqus. But if you like scripting your own analyses anyway, it's super helpful.
@daniprasetya6615 8 ай бұрын
@@DrSeanCarroll I currently works on my master's tesis and I want to use opensees for my models. I need abaqus-like features from opensees. Can we use Salome or GMSH as a mesh generator, opensees as a solver and Paraview as post processing to visualize the result? It would be amazing if this works since all software that I mentioned is an open source software.
@mandregomes 8 ай бұрын
Amazing stuff ;) Is there anything for plates and/or shells using 3d elements on openseespy?
@DrSeanCarroll 8 ай бұрын
Thanks! Yes we can analyse plate and shell elements - I'll have something coming on this soon.
@mandregomes 8 ай бұрын
Nice.
@TitoElantenista 8 ай бұрын
Good work Dr. Sean. As always. 👏👏
@DrSeanCarroll 8 ай бұрын
Appreciate it - thanks!
@namratasarkhot3686 8 ай бұрын
Awesome explanation! Thanks a lot
@mihaliadrian20 9 ай бұрын
Hello! Could you please suggest to me how would I have to proceed if instead of a simply supported column at the top, the boundary condition changes to a spring on the horizontal direction? Thank you!
@canardveinard 10 ай бұрын
Hello, for 3d filled objects such as concrete, wood, etc..., would the direct stiffness method still be approximately valid with an uniform discretization of the beams? Thank you, good video btw.
@DrSeanCarroll 10 ай бұрын
Hey - the DSM is material agnostic in that it will give the force distribution for a structure regardless of the Young's modulus used in the calculation. The value of Young's modulus will obviously influence the magnitude of the deflections though.
@austinpayne9801 10 ай бұрын
I am trying to do analyze a cantilever truss where one node is fixed in X,Y, and Z and a node on the other end has a force acting on it in X,Y, and Z. It is saying "looks like not enough restraints provided", why is this the case?
@austinpayne9801 10 ай бұрын
And if i fix more nodes on the end "face", then it says "there was a problem calculating displacements". Really only one node should be fixed for the scenario i am modeling. It is basically a cantilever truss with one node fixed to a ball shaft and the other end has one node with a rope attached to it pulling in X,Y,Z away from the truss.
@DrSeanCarroll 10 ай бұрын
Difficult to say without investigating the model in detail I'm afraid. You can see how the solver was build here... www.degreetutors.com/3d-truss-analysis-using-the-direct-stiffness-method/ or read a tutorial article about it here... www.degreetutors.com/direct-stiffness-method/ A number of additional 'error checking' constraints were implemented to build this into a browser-based tool. It could be that some of these checks are overzealous in restricting your model or it could be a problem with the model definition. Like I said, difficult to dig deeper in the KZbin comments 🤔
@lologigi17 11 ай бұрын
This was just great. I had to lower the velocity of the video to better understand but the content is brilliant. Thank you very much for sharing.
@DrSeanCarroll 10 ай бұрын
Happy to help...yes I do talk a little fast, being Irish! 🙄 Glad you found the video helpful
@davidtrescatorce 11 ай бұрын
Good stuff! I'd love to take a course on the implementation of damage models for concrete 2D/3D solids!