Research and Development > JFE TECHNICAL REPORT > JFE TECHNICAL REPORT No.18- Special Issue on "Steel Products for Energy Industries" and "Steel Sheets for Automotive and Electric Machinery and Appliance" > Safety and Integrity Assessment Technology for Linepipe

No.18 April 2013 - Special Issue on "Steel Products for Energy Industries" and "Steel Sheets for Automotive and Electric Machinery and Appliance"

Safety and Integrity Assessment Technology for Linepipe

IGI Satoshi       MURAOKA Ryuji       MASAMURA Katsumi

Abstract

The area where a natural gas pipeline is constructed spreads out to the earthquake or the permafrost area. Application of the Strain-Based Design (SBD) is applying to the pipeline design constructed in such areas. Conventionally, in the safety assessment of a pipeline, although stress-based design assumed brittle or ductile fracture due to internal pressure, SBD deals with the compressive buckling or subsequent large deformation until final rupture. While outlining the integrity assessment technology developed for linepipes adapting to Stress-Based and Strain-Based Designs, the performance of the high-strain linepipe "HIPER^TM" developed for SBD is also described.

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