Modeling the lay-down of pipelines and subsequently the in- service conditions for a pipeline involves definition of a pipe-soil interaction model. A generalized true 3D elasto-plastic spring element based on an anisotropic hardening/degradation model for sliding is presented. The basis for the model is the elasto-plastic framework. A generic format is selected, allowing different yield criteria and flow rules to be implemented in a simple way. The model complies to a finite element format allowing it to be directly implemented into a standard finite element code. Examples demonstrating the robustness of the model are presented.
|Title of host publication||Proceedings of the Eighteenth (2008) International Offshore and Polar Engineering Conference : Pipelines and risers XI|
|Place of Publication||Vancouver|
|Publisher||The International Society of Offshore and Polar Engineers (ISOPE)|
|Publication status||Published - 2008|
|Event||18th International Offshore and Polar Engineering Conference - Vancouver, Canada|
Duration: 6 Jul 2008 → 11 Jul 2008
|Conference||18th International Offshore and Polar Engineering Conference|
|Period||06/07/2008 → 11/07/2008|
- elasto-plastic model
- pipe-soil interaction
Hededal, O., & Strandgaard, T. (2008). A 3D elasto-plastic soil model for lateral buckling analysis. In Proceedings of the Eighteenth (2008) International Offshore and Polar Engineering Conference: Pipelines and risers XI (1 ed., Vol. 2, pp. 261-268). The International Society of Offshore and Polar Engineers (ISOPE).