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Keywords: crack growth rate
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Proceedings Papers

Proc. ASME. PVP2022, Volume 1: Codes and Standards, V001T01A016, July 17–22, 2022
Paper No: PVP2022-84851
... components ageing structures AISI 4340 steel brittle fracture ceramics chemical processing plant co-reliability co-reliability-target component co-reliability crack growth rate crack initiation crack propagation cracked pipe failure probability fatigue fracture mechanics gas pipeline glass...
Proceedings Papers

Proc. ASME. PVP2021, Volume 1: Codes and Standards, V001T01A003, July 13–15, 2021
Paper No: PVP2021-64992
..., and the second is to use the mean behavior as the Nonmandatory Appendices A or C, or the new Nonmandatory predictor. Since the calculations used in the Section XI flaw Appendix Y for Crack Growth Rate Curves (2021 Code Edition), evaluation procedures are deterministic, the temptation might be depending...
Proceedings Papers

Proc. ASME. PVP2021, Volume 1: Codes and Standards, V001T01A004, July 13–15, 2021
Paper No: PVP2021-61748
... ti of the preformed PE ring notch specimens during growth model were widely used to estimate the long-term creep tension, and the crack growth rate da/dt, stress intensity lifetime of polyethylene pipe, which the main parameters factor KI can be calculated, then the inherent parameters A, m includes...
Proceedings Papers

Proc. ASME. PVP2021, Volume 1: Codes and Standards, V001T01A029, July 13–15, 2021
Paper No: PVP2021-62169
... crack growth rate data and Pressure Vessel Code (BPVC) Committee has recently of 17 specimens of 2024-T3 aluminum (von Euw, Hertzberg, and developed a new Section XI (Nuclear Components Inspection) Roberts, 1972) for a cracked aluminum pipe (see discussion after Division 2 Code [1] named "Reliability...
Proceedings Papers

Proc. ASME. PVP2020, Volume 3: Design and Analysis, V003T03A042, August 3, 2020
Paper No: PVP2020-21127
... on the fatigue crack growth rate was investigated in order to clarify the reduction of the fatigue life at the mixing tee due to strain with periodic overload. In addition, the prediction method of the fatigue life for the variable thermal strain at the mixing tee was discussed. It was shown the crack growth...
Proceedings Papers

Proc. ASME. PVP2020, Volume 6: Materials and Fabrication, V006T06A013, August 3, 2020
Paper No: PVP2020-21579
...Abstract Abstract A design for flaw placement in a full-scale pipe test was developed to both detect crack initiation and measure crack growth rate upon internal pressurization of a pipe exposed to a sulfide stress cracking (SSC) environment. The objective of this work was to model different...
Proceedings Papers

Proc. ASME. PVP2020, Volume 1: Codes and Standards, V001T01A004, August 3, 2020
Paper No: PVP2020-21711
...TECHNICAL BASIS FOR REVISION TO ASME SECTION XI APPENDIX C FOR STRESS CORROSION CRACK GROWTH RATE EQUATIONS FOR ALLOY 600 AND ASSOCIATED WELDS Amanda Jenks1, Warren H. Bamford2 1Dominion Engineering, Inc., Reston, VA 2Bamford Consulting, Cincinnati, OH ABSTRACT Alloy 600 and its associated weld...
Proceedings Papers

Proc. ASME. PVP2020, Volume 6: Materials and Fabrication, V006T06A071, August 3, 2020
Paper No: PVP2020-21141
... mechanisms must be understood and managed adequately. It has been recognized that there are knowledge and data gaps in the existing information and technical bases for long-term operation and aging management. In particular, post-irradiation data on fracture toughness and crack growth rate are lacking...
Proceedings Papers

Proc. ASME. PVP2020, Volume 6: Materials and Fabrication, V006T06A075, August 3, 2020
Paper No: PVP2020-21365
...Abstract Abstract Crack growth rates (CGRs) at high K levels (more than 30 MPa·m 0.5 ) were obtained in simulated boiling water reactor normal water chemistry under constant K conditions for Type 316NG stainless steel irradiated up to 2.0 dpa. Valid CGRs were obtained even at high K conditions...
Proceedings Papers

Proc. ASME. PVP2019, Volume 6A: Materials and Fabrication, V06AT06A024, July 14–19, 2019
Paper No: PVP2019-94062
.... These stress states aim to reflect simple biaxiality stress states in a pressurized cylinder. In the experiments, different operating conditions were considered. Two different kinetic fatigue fracture diagrams were proposed for mixed mode fatigue crack growth rate estimation. The obtained results suggested...