Investigation reveals aging reduces stiffness in thermoplastic composite pipes, indicating material choice impacts durability.
Key Points
Aging reduced stiffness of PVDF by approximately 50% under supercritical CO2 exposure, while PEEK showed limited degradation.
Structural integrity assessments utilized finite element analysis and validated against experimental results for TCP performance.
Classical Laminate Plate Theory provided baseline stiffness estimates, though actual degradation varied significantly based on ply angle and internal pressure.
Findings promote careful selection of thermoplastic materials and configurations to enhance pipe resilience in oil and gas applications.