Abstract
In this paper, pipe elbow under cyclic in-plane bending loads was evaluated using strain-based evaluation methods. For strain-based evaluation methods, acceptance criteria for local failure presented in ASME BPVC Sec. VIII and the void growth/shrinkage model were considered. The void growth/shrinkage model is evaluation model that incorporates the void growth effect to the acceptance criteria presented in ASME BPVC Sec. VIII. For the validation of evaluation models, predicted failure cycle of pipe elbow was compared with experimental results. The ASME BPVC Sec. VIII method gives very conservative results. The reason of this conservatism is that the void shrinkage effect under compressive loading is not considered. Therefore, the void growth/shrinkage model incorporating void shrinkage effect significantly improving evaluation results compared to result of ASME BPVC Sec. VIII, and crack initiation cycle can be predicted much closer but still smaller than the experimental result.
Original language | English |
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Title of host publication | Seismic Engineering; ASME Nondestructive Evaluation, Diagnosis and Prognosis (NDPD) Division |
Publisher | American Society of Mechanical Engineers (ASME) |
ISBN (Electronic) | 9780791887509 |
DOIs | |
Publication status | Published - 2023 |
Event | ASME 2023 Pressure Vessels and Piping Conference, PVP 2023 - Atlanta, United States Duration: 2023 Jul 16 → 2023 Jul 21 |
Publication series
Name | American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP |
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Volume | 7 |
ISSN (Print) | 0277-027X |
Conference
Conference | ASME 2023 Pressure Vessels and Piping Conference, PVP 2023 |
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Country/Territory | United States |
City | Atlanta |
Period | 23/7/16 → 23/7/21 |
Bibliographical note
Publisher Copyright:Copyright © 2023 by ASME.
Keywords
- Finite element simulation
- Pipe elbow
- Quasi-static cyclic loading
- Strain-based failure evaluation
- Very low cycle fatigue evaluation
ASJC Scopus subject areas
- Mechanical Engineering