(by TailSiT)
Concha is a Rhino3D plug-in for the numerical analysis of shell structures based on the Finite Element Method.
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Concha is a Rhino3D plug-in for the numerical analysis of shell structures. Based on the Finite Element Method, Concha lets you analyse the mechanical behaviour of complex geometries subject to arbitrary loads without leaving the design environment of Rhino3D.


The key features of Concha are

  • Import of any surface-based geometry objects from within Rhino3D
  • Specification of supports at vertices, edges or surfaces 
  • Connection of vertices or surfaces from different geometry parts
  • Different material models
  • Application of forces to vertices, edges and surfaces
  • Temperature and self-weight loading
  • Automatised meshing, surface-wise meshing with non-conforming interfaces
  • Visualisation of deformed shape, displacement components, reaction forces and equivalent stresses
  • No knowledge of Grasshopper or RhinoScript is required


Download the installer and open by double-clicking. A Windows installation wizard will guide you through the installation. 


Concha is a plug-in for Rhino 5 SR12 for Windows (64-bit). It requires 'Microsoft .NET Framework 4.5.1' and the 'Visual C++ Redistributable for Visual Studio 2015 (64bit)'.


The free version of Concha has the following limitations

  • Linear analysis only
  • Reduced number of material models
  • Maximally allowed number of finite elements is 2000


v1.0.3 (2017-03-29)

  • Loading gets labelled with its magnitude
  • Hide model surfaces when viewing colored results
  • Show model entities when performing a selection
  • Layer tree created and destroyed depening on plug-in activity
  • Stage toolbar

v1.0.2 (2017-03-24)

  • Do not unhide hidden geometry
  • Improved analysis-settings and view dialog

v1.0.1 (2017-03-21)

  • Fixing some check-box-dependencies in the view dialog
  • Removing obsolete commands
  • Building against RhinoCommon SR12

v1.0.0 (2017-03-17)

  • Initial release