Numerical Models for Static Denting and Dynamic Puncture of Gas Transmission Linepipe and Their Validation

Gas transmission pipe resistance to external damage is a subject of great attention at Gaz de France and in Europe. Existing results cover part of the necessary criteria for the residual life of damaged pipelines, but more knowledge is needed on defect creation. We propose to complement existing experimental work which is limited to the explored range of parameters by validated numerical models. The first, simple static denting model aims at...