COMPOSITE DURABILITY & STRUCTURAL INTEGRITY

Predict long-term performance of polymers and composites under chemical exposure. We model chemical ageing, swelling and plasticisation to assess service life and material degradation under actual operating conditions. CheFEM 3 can be coupled with Abaqus and Ansys to translate chemical exposure into time-dependent changes in structural performance.

■  Ageing & Fatigue
■  Stress-corrosion cracking
■  Long-term chemical resistance

Assess retention of modulus, load-bearing capacity, and fracture potential over time. We combine mechanical FEM with chemical degradation models to simulate modulus loss, stress decay, crack initiation, and failure under pressure - supporting both design and forensic evaluations.

■  Modulus retention & creep
■  Chemical-mechanical coupling
■  Stress relaxation mechanisms
■  Focused fracture mechanics

Quantify gas permeation and leakage risks under real operating conditions. We simulate hydrogen, CO₂, and hydrocarbon diffusion through polymer seals, gaskets, liners, and barriers to identify critical breakthrough zones and fugitive emissions. The models combine geometry, time–temperature–pressure profiles, and diffusion data to support compliance and leakage mitigation.

■  Permeation assessments
■  Fugitive emission analysis
■  Risk assessments