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FreeCad med file exports Seg3 and Tri6 elements #211

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TeroFrondelius opened this issue Aug 15, 2018 · 1 comment
Open

FreeCad med file exports Seg3 and Tri6 elements #211

TeroFrondelius opened this issue Aug 15, 2018 · 1 comment

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@TeroFrondelius
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I am building full Open source example and I used FreeCAD for geometry and because there is meshing I thought why not. The problem is that your option are Calculix inp or Code Aster binary med. This med file have Seg3 and Tri6 elements included, which are not needed in the analysis.

Also the error message could be clearer.

MethodError: no method matching assemble!(::FEMBase.Assembly, ::FEMBase.Problem{JuliaFEM.Elasticity}, ::Array{FEMBase.Element{FEMBasis.Seg3},1}, ::Float64, ::Type{Val{:continuum}})
Closest candidates are:
  assemble!(::FEMBase.Assembly, ::FEMBase.Problem{JuliaFEM.Elasticity}, ::Array{FEMBase.Element{El<:Union{FEMBasis.Hex20, FEMBasis.Hex27, FEMBasis.Hex8, FEMBasis.Pyr5, FEMBasis.Tet10, FEMBasis.Tet4, FEMBasis.Wedge15, FEMBasis.Wedge6}},1}, ::Any, ::Type{Val{:continuum}}) where El<:Union{FEMBasis.Hex20, FEMBasis.Hex27, FEMBasis.Hex8, FEMBasis.Pyr5, FEMBasis.Tet10, FEMBasis.Tet4, FEMBasis.Wedge15, FEMBasis.Wedge6} at C:\Users\tfr004\.julia\v0.6\JuliaFEM\src\problems_elasticity.jl:106
  assemble!(::FEMBase.Assembly, ::FEMBase.Problem{JuliaFEM.Elasticity}, ::Array{FEMBase.Element{El<:Union{FEMBase.Poi1, FEMBasis.Quad4, FEMBasis.Quad8, FEMBasis.Quad9, FEMBasis.Tri3, FEMBasis.Tri6}},1}, ::Any, ::Type{Val{:continuum}}) where El<:Union{FEMBase.Poi1, FEMBasis.Quad4, FEMBasis.Quad8, FEMBasis.Quad9, FEMBasis.Tri3, FEMBasis.Tri6} at C:\Users\tfr004\.julia\v0.6\JuliaFEM\src\problems_elasticity.jl:350
  assemble!(::FEMBase.Assembly, ::FEMBase.Problem{JuliaFEM.Elasticity}, ::Union{Array{FEMBase.Element,1}, Array{FEMBase.Element{T},1}}, ::Any, ::Type{Val{:plane_stress}}) where T at C:\Users\tfr004\.julia\v0.6\JuliaFEM\src\problems_elasticity_2d.jl:10
  ...
@ahojukka5
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This is because 3d elasticity does not know what to do with Seg3 elements. Maybe we should give warning in this kind of situations instead of throwing an error. At least give a more clear error message.

@ahojukka5 ahojukka5 mentioned this issue Oct 13, 2019
Merged
ahojukka5 added a commit that referenced this issue Oct 13, 2019
@ahojukka5
Give meaningful error message when assembling continuum elasticity pr…
170c01f 
…oblem fails

Sometimes user may have the wrong kind of elements in element set when
assembling 3d continuum problem. This could happen for example in
situations, where mesher is giving also segment elements. They may have
some use in certain situations, but currently we don't support them.
When assembly is failing for this reasons, we give a meaningful error
message:

[ Info: It looks that you are trying to assemble elements of type Seg3
to 3d continuum problem. However, they are not supported yet. To filter
out elements from a element set, try `filter(element->!isa(element,
Element{Seg3}), elements)`
ERROR: LoadError: Tried to assemble unsupported elements of type Seg3 to
3d continuum problem.

This commit closes issue #211.
ahojukka5 added a commit that referenced this issue Oct 13, 2019
@ahojukka5
Give meaningful error message when assembling continuum elasticity pr…
a3df25a 
…oblem fails

Sometimes user may have the wrong kind of elements in element set when
assembling 3d continuum problem. This could happen for example in
situations, where mesher is giving also segment elements. They may have
some use in certain situations, but currently we don't support them.
When assembly is failing for this reasons, we give a meaningful error
message:

[ Info: It looks that you are trying to assemble elements of type Seg3
to 3d continuum problem. However, they are not supported yet. To filter
out elements from a element set, try `filter(element->!isa(element,
Element{Seg3}), elements)`
ERROR: LoadError: Tried to assemble unsupported elements of type Seg3 to
3d continuum problem.

This commit closes issue #211.
ahojukka5 added a commit that referenced this issue Oct 27, 2019
@ahojukka5
Give meaningful error message when assembling continuum elasticity pr…
c4b46dd 
…oblem fails

Sometimes user may have the wrong kind of elements in element set when
assembling 3d continuum problem. This could happen for example in
situations, where mesher is giving also segment elements. They may have
some use in certain situations, but currently we don't support them.
When assembly is failing for this reasons, we give a meaningful error
message:

[ Info: It looks that you are trying to assemble elements of type Seg3
to 3d continuum problem. However, they are not supported yet. To filter
out elements from a element set, try `filter(element->!isa(element,
Element{Seg3}), elements)`
ERROR: LoadError: Tried to assemble unsupported elements of type Seg3 to
3d continuum problem.

This commit closes issue #211.
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@ahojukka5 @TeroFrondelius