Why coords are not nodes in process "DFlux" ?
Why coords are not nodes in process "DFlux" ?
(OP)
I am working with Dflux in BODY FLUX. I have data file with coordinates of nodes and values of flux at the nodes. I write the subroutine "Dflux" to read data, then I defined that coordinates at nodes are not equal with COORDS(3)(Integration point) getting from modeling.
Ex: I meshed model with length = 5 (mm).
Point node cordinate: (50, 50, 45), but the integation point: (49,49,44).
Now I dont know what I do. Do You help me? Thanks
Ex: I meshed model with length = 5 (mm).
Point node cordinate: (50, 50, 45), but the integation point: (49,49,44).
Now I dont know what I do. Do You help me? Thanks





RE: Why coords are not nodes in process "DFlux" ?
RE: Why coords are not nodes in process "DFlux" ?
I have read your reply. I have just worked at Abaqus in some days. I dont know much about it. Please, decribe clearly. Abaqus gives data of element nodes. They differ from nodes processing in Body Flux (Subroutine DFLUX). What do I do now?
where Can I read or find Fitting Function?
Thank Xerf very much!
Sincerely!
RE: Why coords are not nodes in process "DFlux" ?
This has nothing to do with ABAQUS.
How to construct interpolation functions and fitting functions is described in common textbooks on numerical analysis , numerical methods etc.
A simple 1D example: if you have the values v1, v2 at 2 points x1 and x2 respectively and you are interested in the value v at a point x, with x1<x<x2, then you can interpolate linearly between the values v1 and v2.
The same approach can be used for 2D, 3D.
RE: Why coords are not nodes in process "DFlux" ?