PIPELAYING

In this section, we will consider the results of a static pipelaying analysis. In particular, we will compare the results from MOSES to those of the OFFPIPE program. The pipe used here is a steel pipe, 12 inches diameter and 0.75 inch wall thickness, laid in 1600 meters of waterdepth. Figure 41 shows both the axial force and the bending moment along the pipe that was calculated by each program. The two sets of curves agree well, except for the moment between 2800 meters and 2970 meters. This is probably due to the fact that OFFPIPE’s results used a nonlinear moment–curvature relationship while MOSES used linear ones.

Figure 41: Comparison of Axial Force and Bending Moment Along the Pipe