Abstract
This paper predicts burst pressures of the steam generator tubes with multiple cracks using finite element (FE) damage analysis. Alloy 690(TT) tube (the outer diameter of 19.05 mm and the thickness of 1.07 mm) widely used in the nuclear power plant is considered in this study. Ductile failure at each element is predicted with the damage model known as 'multi-axial fracture strain model' as well as crack propagation is simulated by stress reduction technique in the FE analysis. Simplified ductile damage model for Alloy 690(TT) are determined using tube tensile test data and elastic-plastic FE analysis. FE damage analysis results are sensitive to the element size used in the crack propagation region. Using notched tube fracture test data, proper element size for Alloy 690(TT) is found. Single, collinear, parallel, non-aligned axial-cracks are considered in the simulations and the predicted burst pressures are compared with burst test data.
| Original language | English |
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| Title of host publication | High-Pressure Technology; Rudy Scavuzzo Student Paper Competition and 23rd Annual Student Paper Competition; ASME NDE Division |
| Publisher | American Society of Mechanical Engineers (ASME) |
| ISBN (Electronic) | 9780791856987 |
| DOIs | |
| Publication status | Published - 2015 |
| Event | ASME 2015 Pressure Vessels and Piping Conference, PVP 2015 - Boston, United States Duration: 2015 Jul 19 → 2015 Jul 23 |
Publication series
| Name | American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP |
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| Volume | 5 |
| ISSN (Print) | 0277-027X |
Other
| Other | ASME 2015 Pressure Vessels and Piping Conference, PVP 2015 |
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| Country/Territory | United States |
| City | Boston |
| Period | 15/7/19 → 15/7/23 |
Bibliographical note
Publisher Copyright:Copyright © 2015 by ASME.
ASJC Scopus subject areas
- Mechanical Engineering