- Volume 27 Issue 2
Most ships and offshore structures are equipped with a variety of pipes, which inevitably contain curved portions. The structural design of these pipes mostly relies on the commercial code, CAESAR-II, which was especially developed for the structural analysis of pipes. This study conducted stress analyses of the same pipe unit, including loops, using both CAESAR-II and MSC/NASTRAN, and compared the results to investigate the characteristics of CAESAR-II. A parametric study was then conducted of the various design variables of pipe loops using CAESAR-II to draw some useful information about the structural characteristics of the loops.
Pipe loop;Bending stress;CAESAR-II;MSC/NASTRAN;Finite element analysis;Straight-beam element;Curved-beam element;2-D shell element
- American Bureau of Shipping (ABS), 2008. Rules for Building and Classing Steel Vessels. Part 4, Chapter 6, Section 2, 389.
- CAESAR-II, 2009. User's Manual. Version 5.2, COADE/Engineering Physics Software, Inc.
- Japanese Industrial Standard (JIS), 1988. JIS G 3454-1988; Carbon Steel Pipes for Pressure Service.
- MSC.Nastran, 2005. Quick Reference Guide: Volume 1, 2, MSC. Software Corporation.
- Park, C.M., Bae, B.I., 2010. A Study on the Structural Analysis of Curved Portions of Pipe Loops Used in Ships. Journal of Ocean Engineering and Technology, 24(5), 88-93.
- Park, C.M., Bae, B.I., 2011. Stress Analysis of Curved Portions of Pipe Loops Used in Ships and Offshore Structures. Journal of Ocean Engineering and Technology, 25(5), 52-57. https://doi.org/10.5574/KSOE.2011.25.5.052
- Park, C.M., Yang, P.D.C., 2009. Development of Design Formulas for Pipe Loops Used in Ships Considering the Curvature of Corners. Journal of Ocean Engineering and Technology, 23(4), 91-99.
- Pytel, A., Kiusalaas, J., 2003. Mechanics of Materials. Thomson Learning Academic Resource Center, 407-411.
- Flow Stress Properties of Electric Resistance Welded Small-Sized Subsea Pipeline Subjected to Temperature and Strain Rate Variations vol.29, pp.3, 2015, https://doi.org/10.5574/KSOE.2015.29.3.241