Abstract
This paper presents the developments of a research project attempting to create a satisfactory simulation of ductile fracture initiation and propagation in high strength steel pipelines subjected to internal gas pressure. The pipeline materials that have been used are X80 and X100 high strength steel. The main achievements include: (athe development of a method of transferring material properties' results from simple laboratory tensile specimens to pipelines with cracks through the wall; (bthe prediction of crack propagation and arrest conditions on pipelines using a gas depressurization model, (cthe use of the GTN and a strain rate dependant ductile damage model to predict crack propagation on pipelines. Therefore, the main significance of this project lies on the ability to predict large scale failure of pipelines.
| Original language | English |
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| Title of host publication | 18th European Conference on Fracture: Fracture of Materials and Structures from Micro to Macro Scale |
| Publication status | Published - 1 Dec 2010 |
| Event | 18th European Conference on Fracture: Fracture of Materials and Structures from Micro to Macro Scale, ECF 2010 - Dresden, United Kingdom Duration: 30 Aug 2010 → 3 Sept 2010 |
Conference
| Conference | 18th European Conference on Fracture: Fracture of Materials and Structures from Micro to Macro Scale, ECF 2010 |
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| Country/Territory | United Kingdom |
| City | Dresden |
| Period | 30/08/10 → 3/09/10 |
Keywords
- Crack propagation
- Ductile damage
- GTN
- Local approach
- Strain rate dependence