This paper concerns the numerical simulation of elastic and elastic-plastic crack growth in welded components. Three-dimensional, spline-based, automatic crack re-meshing algorithms have been developed at TWI to simulate crack propagation using the commercial finite element analysis software ABAQUS. These methods allow for fatigue crack growth simulations employing the Paris law, mean stress effects and more advanced elastic crack growth laws, and incorporate nodal release techniques or iterative stationary crack methods coupled with experimentally measured tearing resistance curves for elastic-plastic crack growth. The flexibility, stability and accuracy of these numerical methods are demonstrated through several examples. The application of the crack growth simulations to full-life engineering critical assessments (ECA) of offshore structures is also described and demonstrated.
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ASME 2014 Pressure Vessels and Piping Conference
July 20–24, 2014
Anaheim, California, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-4604-9
PROCEEDINGS PAPER
Three-Dimensional Finite Element Simulations of Elastic and Elastic-Plastic Crack Growth Using Automated Re-Meshing Techniques
Tyler London,
Tyler London
TWI Ltd., Great Abington, Cambridge, UK
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Simon D. Smith,
Simon D. Smith
TWI Ltd., Great Abington, Cambridge, UK
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Şefika Elvin Eren
Şefika Elvin Eren
TWI Ltd., Great Abington, Cambridge, UK
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Tyler London
TWI Ltd., Great Abington, Cambridge, UK
Simon D. Smith
TWI Ltd., Great Abington, Cambridge, UK
Şefika Elvin Eren
TWI Ltd., Great Abington, Cambridge, UK
Paper No:
PVP2014-28425, V06BT06A033; 8 pages
Published Online:
November 18, 2014
Citation
London, T, Smith, SD, & Eren, ŞE. "Three-Dimensional Finite Element Simulations of Elastic and Elastic-Plastic Crack Growth Using Automated Re-Meshing Techniques." Proceedings of the ASME 2014 Pressure Vessels and Piping Conference. Volume 6B: Materials and Fabrication. Anaheim, California, USA. July 20–24, 2014. V06BT06A033. ASME. https://doi.org/10.1115/PVP2014-28425
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