# Import xml in fenics mesh

**URL:** <https://fenicsproject.discourse.group/t/import-xml-in-fenics-mesh/10975>\
**Category:** mesh\
**Created:** [April 19, 2023, 2:26pm UTC](https://fenicsproject.discourse.group/t/import-xml-in-fenics-mesh/10975 "2023-04-19T14:26:55Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![fq\_x](https://yyz2.discourse-cdn.com/free1/user_avatar/fenicsproject.discourse.group/fq_x/32/4933_2.png) [@fq\_x](https://fenicsproject.discourse.group/u/fq_x)\
**Post date:** [April 19, 2023, 2:26pm UTC](https://fenicsproject.discourse.group/t/import-xml-in-fenics-mesh/10975/1 "2023-04-19T14:26:55Z")

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![批注 2023-04-19 222506](https://global.discourse-cdn.com/free1/uploads/fenicsproject1/original/2X/c/c6232bfed1e4b915e72f84d77107ee269a543387.png)

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**Author:** ![dokken](https://yyz2.discourse-cdn.com/free1/user_avatar/fenicsproject.discourse.group/dokken/32/1560_2.png) [@dokken](https://fenicsproject.discourse.group/u/dokken)\
**Post date:** [April 19, 2023, 2:28pm UTC](https://fenicsproject.discourse.group/t/import-xml-in-fenics-mesh/10975/2 "2023-04-19T14:28:30Z")

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Without a minimal reproducible code and the mesh file, it is hard to give you guidance as to what is wrong.

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<div class="post-metadata">

**Author:** ![fq\_x](https://yyz2.discourse-cdn.com/free1/user_avatar/fenicsproject.discourse.group/fq_x/32/4933_2.png) [@fq\_x](https://fenicsproject.discourse.group/u/fq_x)\
**Post date:** [April 19, 2023, 2:28pm UTC](https://fenicsproject.discourse.group/t/import-xml-in-fenics-mesh/10975/3 "2023-04-19T14:28:40Z")

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I am a beginner, How to solve it

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<div class="post-metadata">

**Author:** ![fq\_x](https://yyz2.discourse-cdn.com/free1/user_avatar/fenicsproject.discourse.group/fq_x/32/4933_2.png) [@fq\_x](https://fenicsproject.discourse.group/u/fq_x)\
**Post date:** [April 19, 2023, 2:30pm UTC](https://fenicsproject.discourse.group/t/import-xml-in-fenics-mesh/10975/4 "2023-04-19T14:30:16Z")

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from dolfin import \*  
from ufl import \*

mesh = Mesh(‘mesh.xml’)

# Define Space

V = FunctionSpace(mesh, ‘CG’, 1)  
W = VectorFunctionSpace(mesh, ‘CG’, 1)  
WW = FunctionSpace(mesh, ‘DG’, 0)  
p, q = TrialFunction(V), TestFunction(V)  
u, v = TrialFunction(W), TestFunction(W)

# Introduce manually the material parameters

Gc = 2.7  
l = 0.015  
lmbda = 121.1538e3  
mu = 80.7692e3

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<div class="post-metadata">

**Author:** ![dokken](https://yyz2.discourse-cdn.com/free1/user_avatar/fenicsproject.discourse.group/dokken/32/1560_2.png) [@dokken](https://fenicsproject.discourse.group/u/dokken)\
**Post date:** [April 19, 2023, 2:38pm UTC](https://fenicsproject.discourse.group/t/import-xml-in-fenics-mesh/10975/5 "2023-04-19T14:38:26Z")

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One would also need the `xml`-file, as it is clearly the `xml` file that is the issue here.