Long-Term Reliability of Gas Pipeline Repairs by Reinforced Composites. AnnualReport, July 1992-June 1993

摘要

The report presents a design methodology for using fiberglass reinforcedcomposites for nonintrusive repair of corrosion defects and mechanically-induced dents in gas transmission line pipe and establish the operating envelope and service life of the repair system. A multifaceted approach was devised which included the development of a design model, generation of mechanical data for glass/resin composite materials under a variety of environmental conditions simulating pipeline service, laboratory testing of full-scale pipe, finite element analyses to correlate the design and experimental program, and examination of composite repairs exposed in pipeline environments to quantify any in-service degradation.