Abstract
In this study, the effect of longitudinal distance H between non-aligned twin cracks is investigated using finite element damage analysis. The FE damage analysis based on the stress-modified fracture strain model is used to calculate the failure stress of non-aligned twin cracked pipe. Parametric study on the axial distance H between non-aligned twin cracks with various crack depths and lengths were conducted and compared with predictions using the alignment rules and the net-section collapse load approach for single crack provided in ASME Code. It is shown that the trend of the predicted collapse bending stresses for the non-aligned twin cracked pipes using FE damage analysis are different from the ones using the alignment rule.
Original language | English |
---|---|
Title of host publication | Codes and Standards |
Publisher | American Society of Mechanical Engineers (ASME) |
Volume | 1A-2018 |
ISBN (Electronic) | 9780791851586 |
DOIs | |
Publication status | Published - 2018 Jan 1 |
Event | ASME 2018 Pressure Vessels and Piping Conference, PVP 2018 - Prague, Czech Republic Duration: 2018 Jul 15 → 2018 Jul 20 |
Other
Other | ASME 2018 Pressure Vessels and Piping Conference, PVP 2018 |
---|---|
Country | Czech Republic |
City | Prague |
Period | 18/7/15 → 18/7/20 |
ASJC Scopus subject areas
- Mechanical Engineering