What is CheFEM?
- CheFEM is used for analysis of chemical resistance, diffusion and forthcoming mechanical retention of polymer based materials. As such, the software enables lifetime prediction of composites, coatings, laminates and seals during exposure to any chemical or chemical mixture in any state: liquid, gas or supercritical. CheFEM is also used for failure and permeation assessments, for example in packaging.
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CheFEM predictions show high degree of correlation to - properly carried out accelerated and long term - laboratory test results.
How does CheFEM work?
CheFEM quantifies external surface interactions (surface corrosion rates, solubility thermodynamics, blister formation, etc.) as well as internal phenomena (diffusion/chemical potential driven corrosion of internal materials, interfacial swelling shears, plasticizing of the matrix, effects of insufficient wetting, stress driven void formation, etc.) and relates this to long term mechanical retention and permeation properties. CheFEM consists of the following four modules:
100 FEM/FD Sequencer
101 Lattice Based Thermodynamics & Diffusion
102 Surface & Chemical Activity Driven Corrosion
103 Gibbs Free Restraint
Click respective tabs to learn more about the different modules.
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