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Hi ! I am using Ansys but my question can be answered by people using other softwares... I just want to know what does "contact pressure" really means. Is it the normal pressure between the 2 parts in contact, or the tangential one... ? If anyone can describe me this notion in detail, it...

ok I understand what you mean. Now my final question is : I apply 10 equivalent radial efforts on the plastic piece resulting from the strap effort. If I want to convert this radial effort to a pressure, do you think I have to divide the radial force by the total plastic surface or by only 1/10...

There is no friction since the stap has a polyethylen film that avoid friction... I only know there are 30kN axial tension in the strap and I want to apply a normal pressure (due to the normal effort N projected from the axial tension T of the strap)on the plastic... The arc has a 110mm...

Ok !! Good advice. I can't apply my tension constantly, I must divide it in ten components since it's important to have a strong effort at the center of the plastic element. The strap is applied on 10 surfaces whose the tangents change of value and the projection angle too. So I don't know by...

Thanks zeckman for your reply. Unfortunately, in my case the pressure can't be uniform on the plastic. So if you can tell me how to consider it, it will be great... Thanks a lot

Thanks both of you! cockroach, I attach the pdf file to enable you to open the file and see the picture of my problem. If you have any suggestion, I wait for it... Thanks again !! Vinsce.http://files.engineering.com/getfile.aspx?folder=4fea339d-ec74-4de9-ab6f-6238a62546b2&file=new_document.pdf

Thanks rb1957, I just want to know what do you call "W" and from where comes your formule... ? Thanks a lot

Thanks a lot cockroach !! Very interesting documents. Nevertheless I did not succeed to find a real answer to my problem. I didn't give enough information in my first post. I explain my situation again. I have a stap that tightens a cylinder and a plastic element at the top. The axial load of...

Hello all of you ! I need someone to confirm my opinion. I have a strap of 10 mm thickness and 100 mm width that tightens an element. I know the tension force in the strap (T=30kN)and I want to know the pressure P resulting at the center of the element tightened. You can see the problem in the...

There's nothing to do... really difficult to solve my problems. I hope somebody else could help me. Thanks...

Sorry, I've forgotten the solidworks file..http://files.engineering.com/getfile.aspx?folder=739089d0-236f-4c1e-b57a-a1c00ccb9056&file=Assemblage.x_t

Hi ! I've some problems with my assembly... I use 3 kinds of materials : PA6 for the 2 top volumes , an elastomer HNBR for the volume above them and finally steel for the bottom volume. I apply an effort on the top surfaces linearly (6000N) and a constant pressure (4MPa). I have represented...

Sorry, I've forgotten the solidworks file You can download it now...http://files.engineering.com/getfile.aspx?folder=a9d93224-2920-4c1a-9afa-5bce47975077&file=Assemblage.x_t

Hi ! I've some problems with my assembly... I use 3 kinds of materials : PA6 for the 2 top volumes , an elastomer HNBR for the volume above them and finally steel for the bottom volume. I apply an effort on the top surfaces linearly (6000N) and a constant pressure (4MPa). I have represented...

Thanks for the proposal, Unfortunately it still doesn't work. When I apply a little load (1N) on the top plate, the solution converges but when I rise the effort, an error message appears "one or more elements are highly distorted"... I tried to change the material properties and refine the...

Thanks Ron, Good advice. But I succeeded in solving my initial problem, I posted my second message because of the contact between the 2 bottom layers(cf picture)that occurs after the elastomer deformation. I don't know what condition to take into account between the 2 surfaces that will be in...

Sure, I would really appreciate some advice concerning my problem. You can find attach a picture describing the matter of my preoccupation. Thanks a lot.http://files.engineering.com/getfile.aspx?folder=a82cc4f9-b9c4-4f7b-b683-3c5c9a346813&file=Sans_titre.png

I have question that deals with a contact that occurs after the load increases and I don't know how to face this problem. Maybe I can rise the load until the contact occurs and impose the contact conditions... Or maybe the contact 174 command allows it but I can't find the keyopt that is...

Thanks a lot, Indeed this "error message" was predictable as the structure deformation is so important... Sorry I'm a beginner :) Now I have another question that deals with a second contact that occurs after the load increases and I don't know how to face this problem. Maybe I can rise the...

Hello !! I need some advice concerning a problem of distorted elements that happens after a plastic/rubber contact (using conta174 and targe170). The geometry deals with 2 plates. The element used is solid187 with non linear activation. I refined the mesh at the contact interface. I applied a...