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Dear AngelicaN, Thank you for your help, but when i was reading the *.dat, there is no MAT8. The problem is that when i want to simulate 2 plate (composite material) in 2D problem (X-Y plane) with a contact there are problems: 1- If I use MAT8 with 3D contact, the solution not converge. 2- If I...

Dear AngelicaN, Thank you, really I read all the commands, but maybe i didn´t see the solution. Can you send me your example? I´m grateful to you. Regards

Dear all, I want to simulate the contact between 2 body in 2D problem by Nastran (SOL 400). One of the 2 body is composite material, but untill now i don´t achieve it. If i use 2 metal body, i have results, but when i use the composite material, Nastran doesn´t work. Any body have any idea...

Hi everbody, I try to simulate 2 body contact in 2D problem by Nastran (SOL 400). One of the 2 body is composite material, but i don´t know why Nastran no consider the contact between them. Is it posible to do it? or i have to change it to 3D problem? Please help. Thank you

Dear rb1957, The cyclic load here is the weight (0 to weight). But as btrueblood said, there is a fretting damage. I think that i will simulate 3D rod and i will have the stress by abaqus, after that i will try to calculate the life. I hope that i can do it. Thank you

Dear rb1957: I have the S/N curve, my material is: Kevlar. to analysis this problem by FEM: 1- I have to simulate the cable as a rod with a lot of wire beside? or just a rod with the Kevlar property? 2- I have to simulate the contact between the wires? When I have the stress by FEM, I have...

Dear Twoballcane: I know how to do the fatigue analysis in metal material using the Goodman diagram, but I don´t know do it in metal material cable. I don´t know how to do the fatigue analysis in composite material, so please if you know how, can you send me something like a note explianing me...

Dear all, How can i calculate the fatigue of a cable (a lot of fibres) of composite material? Is it possible to simulate it by Abaqus? Thank you

Hi OptiEng: I want to simulate two twin deformable discs. But as i see, that it is a little dificult, so i thought that maybe i can obtain the same results if i simulate one deformable disc and put a rigid body. So i ask if anyone know about this. thank you

Hi everbody, I have one question: Can i simulate two twin deformable discs, which that each one has an angular velocity, AS one deformable disc and rigid body??????? Thank you Mosab

Dear bhavbhuti302 I was looking your model, but it has a problem, i think.. Because when the disc start to rotate the size of the disc has been changed. untill now, i don´t have any solution for my problem, any help? Thank you

Dear all, I attached the model in format .inp. The goal is: I want to calculate the tangential stress in the contact zone. The problem is: Two discs with the same material, The angular velocity of the first disc is 410 rpm and the second is 381 rpm. So i thought that i could do it as a static...

Dear all. Any one, can help me? I want a model of two discs that each one has angular velocity 43 rad/sec. Can you do it and send me the model? Thank you

Dear OptiEng, I did it as the Abaqus manual explained (reflect model), and i had two same discs, but the problem was that: the set of the inner circle of the original model, after de reflect the set has the inner circle of the original model and the inner circle of the reflect model. Maybe i...

Dear OptiEng, Yes, as you put before. I´m sorry, but, can you send the ROTATING_DISC_FE.cae in format ROTATING_DISC_FE.inp About my Symmetric model generation problem: I did what the abaqus manual explained, and now i have the one disc, but the Symmetric model generation transport permit one...

Hi OptiEng, i send you your file with its corrections. Good luckhttp://files.engineering.com/getfile.aspx?folder=f4bfe7fc-a721-4807-96a1-d16a35932dc6&file=FEM.inp

Hi OptiEng, i was looking your .inp i found that you have the RF has the node number=1, and your disc has also the same node number. I think that if you change the node number of RF it will work. My model is the same but the RF for each disc have the node number 400000 and 300000. Good luck

Dear all, i was trying to model the two discs by: Symmetric model generation, reflect The problem is that when i do this a can´t generate set for master , sclave surface between the discs. anyone know how can i do it? Thank you

Dear OptiEng Can you send your file as .inp for see it. thank you

Dear rstupplebeen, I want to model two discs with its angular velocity, and have the tangentail forces between the two discs as a function of the angular velocity. The model that i attached before, it is just a model to understand the problem, but the model was expanding with the angular...