That's a very nice video. There are not many RC examples done in Workbench. After some time, I was able to come up with a similar model (including command blocks), but it's really good to see we are on the same track! Keep up the good work and thank you! Igor

Hello all. Thank you DrDalyO for this and more great tutorials! I also had the same error as many have mentioned here. The error goes like, "Switching to a different shape is not allowed while elements of ... Element type 1 is not the same shape as SOLID65." The solution is to select your concrete part and modify the mesh by doing the following: (1) right click on mesh, (2) select "method", and change the method to "multizone". Apparently SOLID65 elements should have such shape.

Hi, and thanks for putting up your concrete modeling videos. One comment on the static structural model that you have developed: Viewers should note that the coupling connection between nodes reinforcing rods and concrete by node coupling works only because of the element sizes and placement of the rods in the concrete block. You have done it so that you have coincident nodes in the elements of the concrete block and of the rods. Users will need to ensure that they use low-order bricks so that the SOLID65 bricks can be substituted. It will take more work for the "general case" in which the concrete is carved up into a multibody part so that reinforcing bars can be placed along edges of the bodies that are the concrete. With mesh density controls along the edges that are shared between the line bodies of the reinforcing bars and the concrete blocks, it should be possible to have coincident nodes that can be coupled with reinforcing bar locations that are not quite as restrictive. I am impressed with how smoothly and quickly you are able to present. Nice piece of work!

Thank you DrDaylO for the video .

thank you for very interesting. Vedio ,,I hope is these are. available. ,, one Vedio. for. doubly reinforced. beam. also. thank you. for a nice last Vedio. about. all the ,topic of static sturcture ,,,continuo dr don't stop ,,many people are watting for you.

You have great tutorials! Can you continue making them please

Thanks you so much for being more than helpful. God bless you!

Dear Dr, I ask you in recent version of Ansys workbench static , the bond slippage between bars and concrete can defined as built-in without command ?

So good Dr.Dalyo

One correction in the video the Solid65 and Link180 do not define the material, These are the element type that ANSYS will consider while solving the equations.

Extremely helpful, I'm appreciating so much. Good luck for you!

R,MATID,12,,0 The 12 on the last line, does it represent the rebar radius, diameter or area? I saw a document were someone put in the rebar area instead. Also, you put the concrete crushing stress value as 25 but the compressive stress from your data points for the concrete stress strain relationship is up to 30. Please provide info on this. Also, i modelled the same geometry on ansys 19.2, and after analysis the impactor on top slides outwards, but when i keep the contact as bonded, it stays. Please help.

These commands are not working can you explain it to me bit clear this is the error which occur after solve An unknown error occurred during solution. Check the Solver Output on the Solution Information object for possible causes.

Thank you for the understandable tutorial.

Hi, Can you make a tutorial of RC Beam/column with FRP? Really appreciate it. Thank you>

Thanks you for your nice presentation.

I have a question. I'm doing my project on magnetorheological shear thickening polishing for brittle materials. However, I'm doing simulations with ANSYS software for CFD, and I have obtained satisfactory results. But for static structure, I want to check when cracks and fractures will occur and how the penetration of grits or abrasive particles could impact this. Could you please help me with this?

Thank you Dr Its perfect

Hello, I followed your guide step by step. I have tried for 2 days straight to solve this but the following warnings occur when trying to solve: Poisson's ratio NU set for material 1 deleted. Material property table exceeds the number of defined temperatures. Number of temperatures is 1. The number of data values is 2. Poisson's ratio NU set for material 3 deleted. Material property table exceeds the number of defined temperatures. Number of temperatures is 1. The number of data values is 2. Poisson's ratio NU set for material 4 deleted. Material property table exceeds the number of defined temperatures. Number of temperatures is 1. The number of data values is 2. Poisson's ratio NU set for material 5 deleted. Material property table exceeds the number of defined temperatures. Number of temperatures is 1. The number of data values is 2. Poisson's ratio NU set for material 6 deleted. And then a warning that: 'One or more bodies may be underconstrained and experiencing rigid body motion. Weak springs have been added to attain a solution. Refer to Troubleshooting in the Help System for more details.' Can you please help me? I suspect either the command files are incorrect or something else. I have redone your exact steps multiple times and still get errors. Thanks Dr.

could you please do a detailed video on soil-structure interaction analysis and design of a building? that'd be very helpful

Sir please explain how to give prestress to the beam

thank u very much .. I'm learning so much things from your videos .. please keep going :)

Hello Dr Daylo,thank you for uploading the tutorial! I want to know if I can still work on the Ansys workbench if I don't have the command inputs from solid work that you've mentioned then please let me know

May you arrange stirrup rebar in order to learn how you provide bond between longitudinal rebar and shear rebar ?

Thank you DrDalyO for the video! Sir, Are the commands used in this video applicable for lateral reinforcement as well? If not, what commands are to be changed ?

An unknown error occurred during solution. Check the Solver Output on the Solution Information object for possible causes.

Also DR. when adding the commands: /PREP7 ESEL,S,ENAME,,65 ESEL,A,ENAME,,180 ALLSEL,BELOW,ELEM CEINTF,0.001, ALLSEL,ALL /SOLU OUTRES,ALL,ALL Do you not have to change the 'ENAME' to something else? Such as the Support so the errors do not show up?

Thank you sir for uploading this video, I am trying same analysis for another geometry but it shows an error : *** ERROR *** CP = 1.186 TIME= 11:47:34 Duplicate temperature values were found. The MPTEMP command is ignored. please help me to get rid of these errors in this project.

funny thing happening to my model when i add APDL. the force i apply is in Possitive Y while the deformation i get is in the opposite direction.

I have a problem my geometry is complex so it's a tetra mesh is there any way to use the same command the solve is give me error because of concrete elements

DrDalyO, I had previously tried out this tutorial during my PhD, but I was using APDL. I can provide some comments here, but I also have questions. 1) Your concrete stress-strain graph for concrete plateaus at peak strength but the real graph for concrete shows strain softening. As I know, v12 - v14 cannot model strain softening and I think that's why you had used the plateau here. Is the only workaround for this is to use Explicit Analysis? 2) Why was strain softening able to be modelled in v10 and earlier? Were v10 and earlier using a different solver or was that an ANSYS coding error? 3) What are the limitations in Workbench (WB) that requires one to revert back to using (parts of) APDL on certain situations? 4) Wasn't WB supposed to replaced APDL, so why do those limitations still exist in v18? Thanks.

2021 R1 workbench allows to define MISO tabular data for the material. Does that mean using APDL command isn't necessary?

I have a problem An unknown error occurred during solution. Check the Solver Output on the Solution Information object for possible causes. One or more bodies may be under constrained and experiencing rigid body motion. Weak springs have been added to attain a solution. Refer to Troubleshooting in the Help System for more details. Can you help sir..

How about modelling stirrup reinforcement to hold back shear effect? please help

While solving it shows an unknown error occurred during solution ansys Kindly help i am solving in ansys 2024 student version

when i changed the stress strain table with high strength concrete the ansys did not solve sir thank you very mush for the video you have no idea how i appreciate it

How to use COMBIN 39 element as Bond between Solid 65 and Link 180

Fatigue analysis in abaqus using beam model

Dear DrDalyo, Thank you for this video. Can we use SOLID65 or other elements without using commands? It will be great if you or someone else answers that.

Hi, I can see concrete material in Ansys workbench 2023. Is it okay to assign that concrete to my reinforced concrete beam?

Great video, thanks

Hello Dr Dalyo... Thanks for the video, it's been helpful. Can you please advise me on how to model prestressing in workbench assuming the same model was prestressed concrete beam. how would I add a prestressing force to the rebar.

Great video! Thanks!

Hi, want to ask. If i click the solution for maximum principle stress, the impactor is moving out from the body (concrete). why? can we lock it so that it cannot move?

Dr DalyO, thank you for this very helpful video. You have mentioned that there are other tutorials that do similar static modelling for concrete/rebar from within Ansys APDL - could you point me to these tutorials please that you refer to when you get an opportunity. From APDL, I am presently endeavouring to model concrete/rebar with stirrups (eventually studying the effect of openings within the concrete beam); I have come across a few relevant tutorials using APDL but would appreciate if you or any of the community could point me to other relevant tutorials (using the APDL development environment please). Many thanks

Dear DrDalyO, Thank you for uploading this useful video. Expecting more informative tutorials like this. Can you please send me the link to the entire report of NGUYEN ? Thank you, Regards.

Hi, Im using ANSYS 2021 R2. While i follow the procedures from the video. I got the error message "an unknown error occured during solution. Check the solver output on the solution Information object for possibe causes". Is the anybody have the solution for this error ?

Ok sir thanx for your good work.I will try it.

Dear Dr. DalyO , we are working on diffirent project ( dam design). Our problem is about solution because we have error message all the time (ERROR MESSAGE: the solver engine was unable to converge on a solution for the nonlinear problem as constrained ) . Thanks for your interest.

Awesome video! Thank you!

Why U don't choose/edit material using interface?

because , I Need to know Carefully How to Make a good Contacts definition between main bars (top & bottom ) and links also contacts with concrete areas ,, in addition to make a good quality of mesh of Doubly Reinforced Concrete Beam ,,,Thanks Dr.

how to model stirrups in RC beam

Can we use the commands for inserting only materials. I only have to input concrete material so will the command for concrete part be sufficient Or should I also add code in static structural and solution part as well?

Thank you DrDaylO for the video . I'm new to Ansys and Is it possible to model and analyze the above without the command blocks? Also, Is it possible to include bond strength between rebar and concrete in the analysis ?? Thanks.

I think to avoid error in solution as appear when use solid65 for beam models , should choose dropped mesh for element midside nodes

''Node 4 does not lie on or near the selected elements. The CEINTF operation produced no results for this node." I have this warning... do you have any idea what is happening?

Hi Dr ur video was so helpful for me just one more thing can u explain more about Concrete and Rebar commands and thank you so much

hello Sir ,can you kindly tell me what is the impactor you are talking about?Is it load?Aso will the be same for all RCC structure?

sir ,plzz do design beam column joint design and anlysis

Sir,I have a doubt.solid65 element is used for concrete . It is used for all grades like m25, m30 and so on....so how could I particularly use it for a specific grade?should I have to alter it's command

Really helpful video.. I want to check a sandstone behaviour can I approach in the same way ?

Hello Dear DrDalyo! Thank you for this useful video. Could u make a video for (shear Wall or RCC wall ) with biaxial loading, how would be deformation and cracks. Thank u very much, waiting for the video.

Hello sir, I've recently started working in ANSYS Workbench 19.0. I used the APDL commands you have specified with minor changes in the stress and strain, but the deformation is very low when compared to the experimental data. The rebar commands are not influencing the model. It doesn't show any error when I comment Young's modulus or I increase the value exponentially. Could you please help me in this?

This tutorial is awesome. Thank you so much. I have 1 question, did you ever calculate rc beam strenght by FRP sheet? I want to solve this problem using ANSYS, using analytical method and in natural experiment. So Im open for all advices))

awesme job, thanks man

Thanks, DrDalyo. I met this problem 'Element type 1 is not the same shape as SOLID65. Switching to a different shape is not allowed while elements of type 1 exist.' It seems when solid65 tries to override Structural Steel, it fails. Do you have any idea about how to fix it?

Hello DrDayl0, could you remake this video using Ansys 19?

Please tell me how to fix this error.."AN unknown error occurred during solution. Check the Solver Output on the Solution Information object for possible causes".???

Why giving command instead of apply concrete property directly??

Sir can you upload a tutorial for RCC I girder fatigue check.

Can you create a new reinforced concrete tutorial using Ansys R19 please? R19 has a weird interface and tools are different. I went through this example with R14 version (that's the only old version I could find). And I got these two errors: - "An unknown error occurred during solution. Check the Solver Output on the solution information object for possible causes." - One or more bodies may be underconstrained and experiencing rigid body motion. Weak springs have been added to attain a solution...." I did exactly what you have shown in this video, but it is giving some warnings about poissons ratio in the Solver Output. Thanks, Baha

Hello, very nice demonstration. have you tried modeling a beam with cold joint? if the cold joint of the beam is inclined, how do you model an inclined surface how do you bond the two concrete surfaces? thank you very much

If we model reinforcement by slicing the concrete material and provide a bounded contact with the concrete, would it be right ?

how can i specify that the comands for the stress-strain curve are for compressive or tensile stress only ? concrete doesnt have the same stress-strain curve for compression and tention and i need to input both curves. How can i do that? I mean the command you used was for compression or tention ?

What changes should i make in the modelling if i want to wrap the opening alone inside and around with gfrp sheet...?

Dear Dr DalyO How can I obtain crack formation by time of analysis? Thank you in advance.

Sir these codes are not working for my projects

Thank you for this video. I tried the example out but got 40 of errors stating "Constraint equation xx has unused node 3581" where xx is a number in the range 1-40. Any assistance to solve this will be appreciated

Hello Sir, I am new to ansys and i am trying to model circular concrete column with biaxial bending. While defining the concrete material as per the apdl commands I am getting an error as, "Element type 1 is not the same shape as SOLID65. Switching to a different shape is not allowed while elements of type 1 exist". Also, if I am to model 3D reinforcement, please can you guide me with the commands for rebar as solid65. Please guide me asap

Can you make a video on anaylsis of Voided Slab

Can you please create a post-tensioned RC concrete beam model simulation. How to simulate the cable that compress and cause bend of a beam

Thank you DrDalyo for such a useful video. However I have a question that, is it necessary to use command?

can you please tell me why you used MPDATA for rebars intead of MP. because MPDATA is associated with temperature table and you didn't used. thank you Dr

Dear Dr, for Ansys 2021 R2, can we use the same method to assign the element type and material model as shown in this video? I mean you assign command for each of the geometry element. Thank you

Can you please show how to add stirrups in the beam? Thanks

your method does not work. it stops after giving error.i can send the input file.

Hi DrDalyO, thanks for nice tutorial. I have a question, since I am using ANSYS 17.0, there is no select mesh button available. The only thing I have here only Node (Ctrl+N) and Element (Ctrl+M)

please how can i define bond between concrete and rebar in ansys workbench such as (combin39 ) or spring 14? if you can send me code for this definition

are these commands required actually? can i model an RC beam without using commands in workbench? when i tried , reinforcements and concrete were not connected. only the concrete portion deflected leaving behind the reinforcemnt. how can i rectify this?

Hey! I'm new to Ansys. Is it possible to apply a force in the center of the beam and measure the cracks opening in the software? As if we were using a hydraulic press?

If we did not want to use command file then how we will give bond property b/w concrete and reinforcement bars ???? Plz explain it

why is it so important to make connection (that we did before meshing) ? is it always required to make connections when multiple bodies are involved?

Hi, for link180 element the radius assigment via a real constant is not supported from 14 and later. Instead of you should use SECTYPE and SECDATA commands

Am getting an error messege, says tb,plas is no longer supported for solid 65 element.

is it possible to get shear cracks using ansys. to get flexural cracks we give cracking stress and crushing stress. in the same way is there any code or command to get the shear cracks.

hey dr thanks for this useful tutorial i just want to know that how to expand the symmetry to view the full beam thanks and regards

Thank you for the tutorial. I have a question. How to match the nodes of concrete and the ones of rebars, if the rebars are positioned random in the section? Thanks!

how can i see shear stress distribution in any section of beam ? any help please

"An unknown error occurred during solution. Check the Solver Output on the Solution Information object for possible causes."i want help as i have this error message