Thanks a lot for the uploader !! and i am seeing some people asking for the plastic strain values,, for values he is showing the excel formula in his video, apply the same and you can get the same values ..
Sir, kindly what will be give or publish tutorial regarding sheet metal stretching operation which is done in ERICHSEN cupping test.I am doing research on that.Kindly send or give few ABAQUS simulation procedure or step.
I have a doubt in assigning inertia to the holder. Point mass is applied to the reference point at the centre of the outer edge of the holder. However in the subsequent step, another reference point is created on the holder at a different point. Can you please elaborate on this point? Where is the reference point created and where is the mass assigned?
Does not even let me select or show at all the point at the middle of the holder when inserting inertia value of the holder. did you guys figure it out?
You can assign the reference point anywhere on the rigid body. It basically represents the whole body to apply boundary condition or something else to the body. You can assign one and only one reference point for each rigid body.
Hello Thank you very much for your useful video I have a question regarding the type of meterial (the sheet); I am working on sandwich sheets (3 layers: steel (0.5mm thick)/Polymer (0.5 mm)/steel (0.5 mm) how could you suggest dealing with the interface between the layers: we have a shear strength between the steel and polymer of about 10 MPa thanks again!
Hi, I didn't quite grasp the transition where you defined the point mass inertia of the holder. The point you select doesn't seem to appear on my screen although I literally followed all the steps you mentioned before.
hello. Thanks for your video. i got some questions and hope for your aides. i have done the same as you did, but the job has been running for an entire night and still haven't finished, so is this normal? And does there exists some methods to accerelate the analysis?
I have done the same job using different material. Also my model is running forever. I personally think that we should set a criterion to stop the punch otherwise it will move forever. What do you think?? Can we assign the maximum displacement of the punch somehow? Thanks a lot
Good video. But I have some confusion. But the distance between the bottom surface of the punch and the sheet surface should be about 10 instead of 80 according to your results. And there is no need to apply force on the holder. Instead, I constraint it in the Y direction. Aso I am confused about the mass of the holder. Why I have to assign a mass property on a rigid body?
Can I know how much time this simulation wants? I have RAM 4GB with i3 CPU but it's already 3 hours from when abaqus has started to work. Probably I make some mistake but I don't know where! I have followed all your steps :(
Nice tutorial. I had a question regarding the density of the material that you have specified in the material definition. If I am correct in assuming that the units of mass density for the purposes of this simulation is Kg/(mm)^3, then the mass density inputted should be 7.8E-006. However, in the video(around the time 3:51) the mass density was entered as 7.8E-009, which I think is incorrect by 3 orders of magnitude and can considerably change the results for a dynamic test of this kind where inertial effects cannot be ignored.
The simulation results are compared with the experimental data of Ellagoune and Boivin, (Mémoires et Etudes Scientifiques, Revue de Métallurgi, 1988) and steel characteristic and plasticity data were available in Narayanasamy and Sowerby (1995) work.
Hello every body! I would like to repeat it on my computer, but i'm not seeing the boundary conditions and the load in the video! Can somebody help? Thank you...
+Максим Холин Hi Maxim, It's better to do in assembly mode in Interaction module. In top menu select Special, than Inertia and here you are. Of course, you need to create a reference point for the rigid tool first. Feel free to ask, we are specializing in metal forming simulations in Abaqus, AutoForm, Stampack, Deform, ...
Hi +Dmitry Buzlaev, I tried this. but the model gets distorted completely while running. if you could help me out, I would really be grateful. You can contact me on sheldon.pinto93@gmail.com
At 6:58, why do you use that short time period, only 0.09s? I think it must be over 1s at least when doing deep drawing. Because in real life there is no machine can do deep drawing for 0.09s, Please correct me if I am wrong. Thanks.
hé sir need help please, i try to simulate the same process in 3D,but i've got some problems The job input file "Job-3.inp" has been submitted for analysis. here they are Error in job Job-3: in keyword *RIGIDBODY, file "Job-3.inp", line 2768: Unknown assembly set _PICKEDSET13 Error in job Job-3: in keyword *RIGIDBODY, file "Job-3.inp", line 2770: Unknown assembly set _PICKEDSET16 Error in job Job-3: in keyword *BOUNDARY, file "Job-3.inp", line 2796: Unknown assembly node set SET-6 Error in job Job-3: ELEMENT SET ASSEMBLY__PICKEDSET13 HAS NOT BEEN DEFINED Error in job Job-3: ELEMENT SET ASSEMBLY__PICKEDSET16 HAS NOT BEEN DEFINED Error in job Job-3: ELEMENT SET ASSEMBLY__PICKEDSET13 HAS NOT BEEN DEFINED Error in job Job-3: NODE SET ASSEMBLY_SET-6 HAS NOT BEEN DEFINED Error in job Job-3: THE SURFACE ASSEMBLY_SURF-3 HAS NOT BEEN LOCATED Error in job Job-3: A BOUNDARY CONDITION HAS BEEN SPECIFIED ON NODE SET ASSEMBLY_SET-6 BUT THIS NODE SET IS NOT ACTIVE IN THE MODEL Error in job Job-3: NODE SET ASSEMBLY_SET-6 HAS NOT BEEN DEFINED Error in job Job-3: Failed to locate set "ASSEMBLY__PICKEDSET13". Job Job-3: Analysis Input File Processor aborted due to errors. Error in job Job-3: Analysis Input File Processor exited with an error. Job Job-3 aborted due to errors. please contact me on: tassaditcherfi@gmail.com thanks in advance.
Dear Sir Firstly thank you for this tutorial secondly is it possible to get the plasticity data for the materiel thirdly what is the reference for the comparison curve thank you very much
My pleasure The simulation results are compared with the experimental data of Ellagoune and Boivin, (Mémoires et Etudes Scientifiques, Revue de Métallurgi, 1988) and steel characteristic and plasticity data were available in Narayanasamy and Sowerby (1995) work.
Jarray.MedEngineering hello sir ....Thank u for the tutorial. How you calculated the list of Yield Stress and correspondent Plastic Strain value for that material!
Thanks for this video it is very useful but i couldn't find how you applied load and boundary conditions can you repeat this step in another video Thanks in advanced
Nice work. I would like to clarify that since you are using SI(mm) (e.g., density of steel= 7800kg/m3 so you have used 7800E-9) conventions, the point mass has to be in tonne right?. correct me if i'm wrong.
Thanks you for the tutorial for this 1st deep drawing analysis. Is there anyone who knows the 2nd step deep drawing using the result of this 1st analysis result.
For the plastic material one should define logarithmic strains in the range of 0...1.0 This value is not engineering strain in percent. Be careful with material definition!
