How to Define a Mesh with one elliptic crack in neper

[vikramroybarc]

Dear Sir,

I m trying to define a mesh in neper with one elliptic crack, I have tried tranform cut ecylinder but unable to do.

Can you help me with proper set of commands.

Thankyou

I m trying the following method

(neper) internet-user@localhost:/mnt/data/projects/PhaseField$ neper -T -n 1   -domain "square(100,100)"  -dim 2  -transform "cut(ecylinder(50,50,0, 0,0,1, 1,0,0, 0,1,0, 30,3))"   -o cracked

========================    N   e   p   e   r    =======================
Info   : A software package for polycrystal generation and meshing.
Info   : Version 4.10.2-11
Info   : Built with: gsl|muparser|opengjk|openmp|nlopt|libscotch (full)
Info   : Running on 16 threads.
Info   : <https://neper.info>
Info   : Copyright (C) 2003-2024, and GNU GPL'd, by Romain Quey.
Info   : No initialization file found (`/home/internet-user/.neperrc').
Info   : ---------------------------------------------------------------
Info   : MODULE  -T loaded with arguments:
Info   : [ini file] (none)
Info   : [com line] -n 1 -domain square(100,100) -dim 2 -transform
         cut(ecylinder(50,50,0, 0,0,1, 1,0,0, 0,1,0, 30,3)) -o cracked
Info   : ---------------------------------------------------------------
Info   : Reading input data...
Info   : Creating domain...
Info   : Creating tessellation...
Info   : Generating crystal orientations...
Info   : Transforming tessellation...
Info   :   - Cutting (experimental)...
Info   :     > ecylinder(50,50,0, 0,0,1, 1,0,0, 0,1,0, 30,3)...
Error  : You have discovered a bug in Neper!  Please file an issue at
         https://github.com/rquey/neper/issues.  Thank you.

Aborted (core dumped)

[vikramroybarc]

This code works

neper -T -n 10   -domain "square(100,100)"  -dim 2  -transform "cut(ecylinder(00,50,0, 0,0,1, 1,0,0, 0,1,0, 30,3))"   -o cracked

when I switch to 1 grains (n = 1) it doesnt work