Offshore and Arctic Pipelines at

Second ISOPE Strain-Based Design Symposium

Vancouver, July 2008

CUPERTINO, CALIFORNIA, October 20, 2007 ― The 2nd (2008) ISOPE Strain-Based Design Symposium — SBD-2008 Vancouver  will be held at the 18^th International Offshore (Ocean) and Polar Engineering Conference & Exhibition ¾ ISOPE-2008 Vancouver, at Sheraton Vancouver Wall Center Hotel, July 6-11, 2008. The Conference as well as the symposium is sponsored by International Society of Offshore and Polar Engineers (ISOPE)

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.

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: Click on SBD-2008 for Call for Papers.

Abstract Deadline: November 20, 2007

Strain Capacity

• Metallurgical design of steels for SBD
• Use of high strength micro-alloyed TMCP steels
• Development of weld defect assessment procedures (ECA)
• Material 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

At ISOPE SBD-2007 Lisbon, 8 sessions were organized as follows:

Session 47. SBD I: Materials I (V. 4)

Session 57. SBD II: Materials II (V. 4)

Session 66. SBD III: Testing and Evaluation (V. 4)

Session 76. SBD IV: Design and Project (V. 4)

Session 86. SBD V: Mechanics (V. 4)

Session 96. SBD VI: Assessment Procedures I (V. 4)

Session 106. SBD VII: Assessments Procedures II (V. 4)

Session 116. SBD VIII: Compressive Strain Limit and Buckling (V. 4)

The ISOPE SBD-2007 Symposium papers are published in Volume 4 of the ISOPE-2007 Lisbon Conference Proceedings CD-ROM (ISBN 1-880653-68-0; ISBN 978-1-880653-68-5). The Proceedings (3,904 pp.) is available from ISOPE, orders@isope.org.

ISOPE-2007 Lisbon Conference was held with some 550 peer-reviewed papers from 48 countries in 120 sessions and 7 plenary sessions.

Click on www.isope.org later for further information:  General Information, Publication, Author Index, Program Updates and Forms for Advance Registration and Venue Hotel Reservation.

By Technical Program Committee, ISOPE meetings@isope.org