CheFEM
•  CheFEM is developed by Composite Agency and stands for
    chemical potential based FEM simulation of polymer composites.

•  CheFEM quantifies effects of uv/chemical exposure (liquid, gas and supercritical)
    on permeation, on chemical resistance and on ageing performance.

•  CheFEM can be used in combination with mechanically oriented FEM software,
    such as Abaqus or Ansys.

•  CheFEM works with 3 modules. Watch video or click tabs on the left to learn more.
CheFEM has a modular architecture. The modules are ordered according to the
solution sequence:

101  Lattice Based Thermodynamics & Diffusion
102  Surface & Chemical Activity Driven Corrosion
103  Fracture Module
  
101  Lattice Based Thermodynamics & Diffusion Module

The Lattice Based Thermodynamics & Diffusion Module deals with (multicomponent)
chemical potential and solubility in different material layers as function of
temperature, pressure and stress on the element under consideration.

The module also seamlessly calculates (multicomponent) diffusion rates. On this
basis, permeation rate, time lag, degree of plasticizing and material expansion are
determined. Effects of physical and chemical ageing are included.

  
102  Surface & Chemical Activity Driven Corrosion Module

The Surface & Chemical Activity Corrosion Module quantifies surface corrosion
phenomena and chemical activity (fugacity) driven degradation of internal interfaces,
like fillers and reinforcements. Since the long term strength of combined materials
is largely dependent on interfacial robustness, this module is vital in many
circumstances. Effects of UV and Cathodic Protection are included.
103  Fracture Module

The Fracture Module is based on an integrated thermodynamical-mechanical
fracture analysis of material components and interfaces between individual
components. No matter whether nano-, micro- or macroscopic interfaces
are involved. The module predicts whether surfaces will restrain effects of a
local chemical potential and local chemical degradation. If restraint as function
of place and time is insufficient, the module predicts the extent of fracture/ageing.
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