Local approach to fracture applied to the analysis of a full size test on a pipe containing a girth weld defect
| Autor: | Yazid Madi, Jacques Besson, Vincent Gaffard, Clement Soret |
|---|---|
| Přispěvatelé: | Centre des Matériaux (MAT), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Ermess EPF, EPF, TOTAL S.A., TOTAL FINA ELF |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
education 02 engineering and technology Welding Bending Girth (geometry) law.invention 0203 mechanical engineering law General Materials Science business.industry Crack propagation General Engineering technology industry and agriculture GTN model Internal pressure Fracture mechanics Structural engineering respiratory system 021001 nanoscience & nanotechnology Finite element method Cracking Full size test 020303 mechanical engineering & transports Fracture (geology) [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] 0210 nano-technology business Girth weld |
| Zdroj: | Engineering Failure Analysis Engineering Failure Analysis, Elsevier, 2017, 82, pp.404-419. ⟨10.1016/j.engfailanal.2017.07.035⟩ |
| ISSN: | 1350-6307 |
| DOI: | 10.1016/j.engfailanal.2017.07.035⟩ |
| Popis: | International audience; A welded pipeline segment containing a girth weld defect is tested under combined internal pressure and bending. The test is then analyzed with respect to both overall elasto-plastic behavior and crack propagation up to failure. The analysis is carried out using the finite element method. Constitutive equations for the plastic behavior of both weld metal and base metal are determined using tests carried out on smooth and notched bars. The cracking behavior of the weld metal is characterized using SENT specimens. The detailed analysis of the test allows to better understand boundary conditions and to represent the pipe overall behavior. The GTN model is used to represent damage growth up to failure in the weld metal. The simulation then allows representing the pipe behavior up to failure due to through thickness crack propagation. |
| Databáze: | OpenAIRE |
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