Geometry Repairing for FEA Analysis in Extended Metal Panels

Expanded metal deployé is one of the most common solutions for cladding systems in architecture. The deployé mesh is manufactured from a cold flat metal surface. The metal sheet is cut following a precise pattern, then is pulled from their edges to crate the 3D pattern.

An important manufacturer company developed an application to generate expanded metal sheets for visualizations, nevertheless the resultant geometry was not useful for Finite Element Analysis (FEA), in order to understand wind load deformation, mechanical resistance, etc. We help the manufacturer company, developing a software to repair the geometries through recursive algorithms.

The developed software operates in 3 steps: The first step consist in collect from the original geometry all the necessary information to recreate the mesh. Points and their relations are collected and stored in computer's memory. The second step, sort this information to make it useful for the FEA analysis. The last step, combine the information and generates a valid deployé mesh geometry. The big challenge was not to deal with the geometry itself, instead make the software run efficiently and fast.


Mesh generated as individual elements. Not suitable for FEA analysis as a single element, because all the pieces behave independently

The same mesh is re-generated as a single entity. Suitable for FEA analysis

Factor of safety and Stress in a Finite Element Analysis

Table showing the different time consuming for big mesh surfaces


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