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@compositepro thank you for your prompt reply. So you would suggest to produce a thin gold paper like stencil, and to then apply the laser?

Hello, I need a material that could be resistant against a 3000nm Erbium laser or a CO2 laser. I would like to use that material as a thin film stencil on a curved surface, and to cut everything outside it. If you have ideas of materials or methods to do that, please let me know. Thanks

@rb1957 It's true ! I want the scenario 2 AB to simulate a crack. You think the very high stress is from over constraint? Does the tips given jan solve my problems in a precise manner or should I change the constraints ? thanks

@janFEA Dear Jan, Thank you very much for your help. Sorry for the title, I was not able to change it, it came like this by default when I uploaded the image. I followed your advice and it worked ! I changed the definition to "Zero gap/no penetration", and ran the analysis again and it showed...

Hello, I am doing a static linear analysis on an assembly made of 3 parts as shown in the simplified drawing that I attached. I am running this assembly in two different scenarios : 1st- Interface AC is glued and ED is glued. 2nd- Interface BC is glued and BA in contact but not glued, ED is...

Hello, I have zero knowledge in the electromagnetic engineering field, and I would like to know if you can help me in the following question : Is there a device or a method that allows us to control the position of a small metallic ball ? For example, the ball initial position is at x=0 y=0...

Perfect thank you very much!

Thank you SWComposites. It was a curious question because I read somewhere that lasers could join FC sheets and I wanted to make sure if that is possible. As I understood from your answer, there is no way to chemically join the two structures as if they were continuos again, which makes sense.

Maybe it would be interesting to answer because it's called "helping".. If I knew something on the subject I wouldn't have bothered you. So yes maybe it's easy for you, may you share your opinion? Thank you.

Hello, The question might be a bit more in the materials field . Is there a way to join two ends of carbon fiber? I know that you can bond them together, but if we do that, will the properties of the joint be the same as the other locations of the 2 pieces or will it be weaker? Whats the best...

Here is what I get when I do "align by element"... I would like to have the directions parallel to the tangent of the outer path of the curved shape.(Which seems to be hard to do with a solid). Thanks !

I think that this person had the same problem (I have the same questions he asked) . Unfortunately it was not answered . Can anyone help please? http://www.eng-tips.com/viewthread.cfm?qid=213127#post

@jotunn , yes if it was a 2D model it would have been more simple. The problem is that I am stuck with this 3D model, and I sort of have to find a way to do it with that.. Your last proposition seems to be interesting (Long but could be the solution). I hope that someone maybe has a more...

@jotunn thank you for your reply. I can't use "Modify" then "update elements " "Material orientation" because the ring that I'm using is a solid. I tried going to the "Properties" then "Material axes" , but I can find a way to make each element's direction parallel to the tangent of the ring.I...

@RPstress thank you very much for your help.You are absolutely right it's a unidirectional glass fiber. I'm trying to model a ring made of a unidirectional glass fiber, and I only have the Young modulus in X Y and Z.Does this fall under the "ply" modeling ? And as you were able to see I'm...

I have a simple ring,made of an anisotropic material (unidirectional fibers )that I would like to study in femap. If I use the material type as "anisotropic" in femap, I will be able to insert the young modulus in X,Y and Z . I understand that if it was a bar or a straight object,it would be...

I know that this question may sound very stupid , but if I know the Young modulus in the X,Y and Z directions of an anisotropic material, how can I get the elastic matrix (G) ? (XX YY ZZ XY YZ ZX) For example : Young modulus in X = 39 GPa , Y= 12 GPa, Z= 12 GPa. thank you .

yes it's a student project and I'm quite new to femap. So I've tried to put the two bodies in contact , then I used a connector and chose "contact" instead of "glued". and I put loads on the ball and constraints on the cube. The analysis failed and showed fatal errors. Note that I am using...

Hello, I have a very simple assembly containing a cube and a sphere. The two models do not touch in the beginning,they are 1 unit(or 1 cm) far from each other. I want that the cube be fixed , and then apply a force and a motion in one direction(like the x axis) on the sphere that will increase...

this is very helpful.thank you .