 2nd ISOPE Strain-Based Design (SBD) Symposium: Pipelines
July 6-11, 2008
Strain-based design (SBD) generally refers to pipeline designs expected to have longitudinal strains greater than
0.5%. SBD encompasses both strain demand and strain capacity. At least two limit states are associated with SBD:
tensile rupture and compressive buckling. SBD in recent years has been driven primarily by the need to construct
pipelines in the arctic regions, deep-water offshore, and other areas with high probability of large ground movements.
The strain capacity is affected by material properties, geometry/defect features, and interaction between pipes and their
surrounding environment. The strain demand usually has large uncertainties. There are no standards or codified
procedures that adequately address SBD of pipelines.
جهت اطلاعات بیشتر روی ادامه کلیک کنید
Following the successful first symposium on strain-based design of pipelines, ISOPE is hosting the second symposium
at its annual conference in 2008. The overall scheme of second symposium is similar to the first one covering all
aspects of science, technology, and applications of SBD of pipelines, with expanded focus on strain demand. The
organizing committee cordially invites scientists and engineers from academia, industry, and regulatory authorities to
share their latest advancements in this increasingly crucial technology area.
Suggested Technical Topics:
Strain Capacity
• Metallurgical design of steels for SBD
• Use of high strength micro-alloyed TMCP steels
o Weld and HAZ properties
o Balance of strength and toughness
• Development of weld defect assessment procedures (ECA)
o Welding essential variables and procedure qualification tests
o Weld property specifications
o Defect assessment models
o Material response under cyclic strains and dynamic loading
• Material testing methods
o Small scale low constraint tests
o Structural scale tests
o Full scale validation tests
o Reliability and consistency of testing methods
• Emerging issues for SBD, e.g., effects of bi-axial loading, strain ageing, etc.
Strain Demand
• Estimating applied strains from ground movements and displacement-controlled loading
• Soil/fluid/pipe interactions
Application of SBD
• Linepipe specifications for SBD
• Pipeline projects using SBD
• Construction practice for SBD
• Codes and standards development
Symposium Organizing Committee:
Dr. Yong-Yi Wang , Center for Reliable Energy Systems
yongyi_wang@columbus.rr.com, 614-419-2366
Dr. Dan Lillig, ExxonMobil Development Company
dan.b.lillig@exxonmobil.com, 281-654-8185
Dr. Eiji Tsuru, Nippon Steel Corporation
tsuru.eiji@nsc.co.jp, 81-439-80-3103
Key Dates:
• Abstracts Due: December 1, 2007
• Manuscript for Review: Jan. 15, 2008
• Final Papers Due: March 24, 2008
Interested authors should send abstracts to one of the organizing committee members or submit online at
www.isope.org . The abstract must include the contact author’s postal address, telephone and fax numbers, and e-mail
address to facilitate committee communication.
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