Hello centondollar!
Thank you so much for sharing. Actually, the real RVE of that element's face is curved but in FEA software, it is not really curved; even though I tried to increase the mesh, by using the shape function, I can determine the real curved shape of the surface. And the thing is...
Hello rb1957!
I want to determine the elastic coefficient of a porous medium with a fracture that contains the fluid in a static state inside. Let's say we just ignore the fluid phase and think there are traction forces exerted on the interface of the solid phase. Then I want to define the...
Hello rb1957!
I wonder how FE models water? I mean, water doesn't "strain"... or does it?? Yes, you are right; it does not. But it is not the problem and what I want to know is just how the traction vector calculates and imposes on the interface of a 10-node quadratic tetrahedron solid element...
Hello everyone!
Is there anyone who can tell me how Ansys Mechanical calculates and imposes traction vectors on the surface of a 10-node quadratic tetrahedron solid element?
Regards,
SoThun
Hello, rb1957!
Thank you for your response. I am using both Ansys Mechanical and ABAQUS to model the porous medium with a fracture domain. There is water inside that domain in a static state so I want to know the behavior of traction forces exerted by water or how they vary along the interface...
Hello, FEA way!
Okay, I see. That's why I could not find it in both the user's and theory manuals of ABAQUS. Thank you so much for your response.
Regards,
SoThun
Hello SWComposites!
I have been looking at some of them but I have found that they are not helpful to me in applying them to my problem. Because I need to compare it with what I have done with the numerical method. So I wonder is normal vector imposed at the center of an element's face or on...
Hello everyone!
Is there anyone who can tell me how ABAQUS calculates and imposes traction vectors on the surface of a 10-node quadratic tetrahedron solid element?
Regards,
SoThun
Hello rb1957!
I have tried to look at those things but I still cannot figure out how they calculate and determine the normal vectors on a flat or curved surface. If you have any ideas about that, please let me know, because it will help me solve the problem.
Regards,
SoThun
Hello SWComposites!
Of course, you are right. And the problem is that I could not find those kinds of equations but if you know, please let me know about that too.
Regards,
SoThun
Hello rb1957!
I am using a 10-node quadratic tetrahedron solid element and there is only one curved face of that element on which I want to study the behavior of traction forces exerted on that face (surface traction). But for me to determine those traction forces, first I need to know how to...
Hello sdm919!
Thank you for your answer. I want to impose the traction forces on my quadratic tetrahedron element's surface. And on one face of that element is a curved face and I want to calc the normal vectors of those forces and define the location of the normal vector, whether they are on...
Hello SWComposites!
Thank you for your answer. I use the quadratic tetrahedron element, but I have chosen only the surface of that element to study the traction force. And to do that, I have to calc the normal vector first, so I do not know how to do that. And I also want to know the location of...
Hello rb1957!
Thank you for your answer. Here I want to talk about the traction forces exerted on the surfaces of an element, especially on the curved surfaces of the element.
