Application of force-resultant models to the analysis of offshore pipelines

Abstract

The application of force-resultant model, UWAPIPE, to the analysis of offshore pipelines is discussed. The model is implemented into the commercially available finite element ABAQUS. It can be used as a one element force resultant model with a single nodal attachment onto any of the library of ABAQUS structural elements. The UWAPIPE plasticity model computes updated tangent stiffness for each step.