COMPOSITE ENGINEERING & DURABILITY

Predict long-term degradation in chemically exposed polymer composites. We model chemical ageing, swelling, and plasticisation to estimate component lifespan without extended testing. Using calibrated EOS data, CheFEM 3 interfaces with Abaqus and Ansys to simulate diffusion-driven property changes and their effects on 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