06 October 2021
Non-Metallic Component Fitness-for-Service-Assessment
There are currently no globally-accepted fitness-for-service (FFS) procedures for non-metallic components. As the oil and gas industry increasingly looks towards exploration and production from unconventional resources, so new material solutions have been sought for corrosion protection in demanding environments. For instance, reinforced thermoplastic polymer pipes have been gaining support as a reliable alternative to traditional carbon steel pipes.
Conventional metallic components have validated FFS procedures under a range of standards and codes in order to assess fabrication and in-service defects including corrosion damage, cracks, lack of fusion, fatigue damage, misalignment, or other shape defects (perhaps as a result of mechanical damage). An FFS assessment can be used to evaluate the remaining life of the component using an understanding of operating history, materials properties, and defect morphology to determine whether a component can safely serve beyond design life, perhaps with modified operating conditions.
This webinar explores some of the features of existing fitness-for-service techniques for metallic components, where there is potential for application to non-metallic components. Future work programmes that will be required to adequately characterise non-metallic material resistances and damage driving forces, such that rigorous FFS methodologies may be applied to permit continued operation of damaged non-metallic components will also be outlined.
Rob Kulka EngD CEng MIMechE
Section Manager - Asset Integrity Management
Rob Kulka is a chartered mechanical engineer and undertook an engineering doctorate at the University of Manchester, developing the understanding of fracture mechanics behaviours in complex configurations. He spent ten years as a structural integrity expert with Frazer-Nash Consultancy and is now Section Manager for Asset Integrity Management at TWI.
Rob has significant experience in analysis of material performance and the demonstration of structural integrity of components in the nuclear, power, defence, petrochemical, and transport industries, through the use of complex computational analysis, defect tolerance and design code assessments.