Definition(s)
SIF
Stress Intensification Factor.
Source: ISO 14692-1:2017, Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 1: Vocabulary, symbols, applications and materials, Second Edition, August 2017. Global Standards
SIF
Ratio of the actual or effective longitudinal stress in a component or fitting under external load to the nominal stress in that component or fitting as determined based on a straight pipe run with the same MPRxx as the component fitting.
Source: ISO 14692-1:2017, Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 1: Vocabulary, symbols, applications and materials, Second Edition, August 2017. Global Standards