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Keywords: creep
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Proceedings Papers

Proc. ASME. PVP2023, Volume 5: Materials & Fabrication, V005T06A058, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-106623
... is the most widely used process for the generation of hydrogen. This paper focuses on the impact of time-dependent damage (creep) on critical steam methane reformer components such as tubes, pigtails, and outlet headers. Specific challenges linked to material variability, well-pedigreed databases, damage...
Proceedings Papers

Proc. ASME. PVP2023, Volume 6: Operations, Applications, & Components, V006T07A011, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-106055
... is affected to the duct directly, the surface of the duct is exposed to the elevated temperature, and it is called a hot spot. The temperature increase of hot spot does not lead to immediate failure, but it causes structural rupture or bulging of the duct due to creep in the long term. When hot spot occurs...
Proceedings Papers

Proc. ASME. PVP2023, Volume 6: Operations, Applications, & Components, V006T07A004, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-105293
...Proceedings of the ASME 2023 Pressure Vessels & Piping Conference PVP2023 July 16-21, 2023, Atlanta, Georgia PVP2023-105293 MULTI-AXIAL STRESS CREEP CONSUMPTION PART I ; TESTING AND VALIDATION OF EX-SERVICE 347 SS Teppei Suzuki, PhD., Yoichi Ishizaki, P.E. Idemitsu Kosan Co., Ltd. Chiba, Japan...
Proceedings Papers

Proc. ASME. PVP2023, Volume 6: Operations, Applications, & Components, V006T07A006, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-105411
...Proceedings of the ASME 2023 Pressure Vessels & Piping Conference PVP2023 July 16-21, 2023, Atlanta, Georgia PVP2023-105411 MULTI-AXIAL STRESS CREEP CONSUMPTION PART II; CONSIDERATION ON CREEP CRITERIA TEMPERATURE FOR FFS Yoichi Ishizaki, P.E., Teppei Suzuki, PhD. Idemitsu Kosan Co., Ltd. Chiba...
Proceedings Papers

Proc. ASME. PVP2023, Volume 5: Materials & Fabrication, V005T06A015, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-101385
...Proceedings of the ASME 2023 Pressure Vessels & Piping Conference PVP2023 July 16-21, 2023, Atlanta, Georgia PVP2023-101385 LMP AND OMEGA CREEP TESTING OF HPMA CENTRIFUGALLY CAST FE-CRNI ALLOYS Jorge Hau Shell Global Solutions (US) Inc. Houston, Texas, USA Hussain Abdellatif and Park Neil Shell...
Proceedings Papers

Proc. ASME. PVP2023, Volume 5: Materials & Fabrication, V005T06A014, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-101378
... Abstract A metallurgical evaluation was conducted involving a 316Cb tube removed from an atmospheric distillation unit heater, after 18 years of service. Since this steel is not a standard material for heater tubes, the design used creep properties from type 347 stainless steel tube. A tube...
Proceedings Papers

Proc. ASME. PVP2023, Volume 1: Codes & Standards, V001T01A038, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-106584
... procedures with explicit consideration of creep. The evaluation module of ASME-NB has been added because the lowtemperature design evaluations should be also conducted for a high-temperature component depending on temperature fluctuations. The HITEP platform can be used with high reliability and efficiency...
Proceedings Papers

Proc. ASME. PVP2023, Volume 1: Codes & Standards, V001T01A036, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-107524
...Proceedings of the ASME 2023 Pressure Vessels & Piping Conference PVP2023 July 16-21, 2023, Atlanta, Georgia PVP2023-107524 SUB-SIZED CREEP SPECIMEN TESTING FOR HIGH THROUGHPUT AND POSTIRRADIATION TESTING Michael D. McMurtrey1, Ninad Mohale1 1Idaho National Laboratory, Idaho Falls, ID, USA ABSTRACT...
Proceedings Papers

Proc. ASME. PVP2023, Volume 2: Computer Technology & Bolted Joints; Design & Analysis, V002T03A043, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-105941
... Abstract Creep is a classic inelastic-strain accumulation mechanism of pressure components exposed to high temperature. Due to the long-term exposure, the residual life is usually checked accounting for the steady-state creep, namely the dominant regime in terms of contribution...
Proceedings Papers

Proc. ASME. PVP2023, Volume 2: Computer Technology & Bolted Joints; Design & Analysis, V002T03A029, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-106176
... Abstract The rules of ASME B&PV Section VIII Code provide (i) allowable tensile stress at elevated temperatures based on time duration of 100,000 hours; (ii) external pressure charts which do not account for reduction of buckling strength due to creep under short or long-term loads...
Proceedings Papers

Proc. ASME. PVP2022, Volume 2: Computer Technology and Bolted Joints; Design and Analysis, V002T03A027, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-81247
... specimen to evaluate the mechanical performance under axial tensile loadings to study the failure mechanism. The lab-scaled PCHE specimens were tested under overpressure loads at room temperature, and pressure creep and pressure creep-fatigue loadings to mimic the realistic loading conditions observed...
Proceedings Papers

Proc. ASME. PVP2022, Volume 4A: Materials and Fabrication, V04AT06A043, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-84906
... data in hydrogen at a range of temperatures (316 to 399°C [600 to 750°F]), 5.52 MPa (800 psig H 2 ) hydrogen pressure, and stress intensity values between (10.5 to 35.4 MPa√m [9 to 32 ksi√in]). These results were used to validate and refine a crack growth model based on the creep crack growth fracture...
Proceedings Papers

Proc. ASME. PVP2022, Volume 4B: Materials and Fabrication, V04BT06A014, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-84863
... and inspections conducted. The heater was partially rebuilt with the convection section tube material being recovered and the radiant section being rebuilt in a different metallurgy. ageing creep damage elevated temperature fabrication failure materials welding Proceedings of the ASME 2022 Pressure...
Proceedings Papers

Proc. ASME. PVP2022, Volume 1: Codes and Standards, V001T01A076, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-84897
.../Nuclear, Creep, Probability/Probabilistic 1. INTRODUCTION Advanced Modular Reactors (AMRs) are defined as a broad group of advanced nuclear reactors, which have the characteristics of being modular in construction, use novel cooling systems and/or fuels, in order to achieve operational efficiencies, have...
Proceedings Papers

Proc. ASME. PVP2022, Volume 1: Codes and Standards, V001T01A051, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-81135
... margin (LNDM) method is recommended, as it is the most robust, even when used with complex creep laws. The surrogate Monte-Carlo analysis (using a Gaussian process regressor as a surrogate) was found to generate results that were just as accurate and precise as classical Monte-Carlo analysis...
Proceedings Papers

Proc. ASME. PVP2022, Volume 2: Computer Technology and Bolted Joints; Design and Analysis, V002T02A011, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-78366
... nominal diameter affect the change over time of the bolt load under a high temperature environment. This paper proposed formulas to calculate the changes over time in bolt stress and gasket stress easily due to bolt creep by applying the mechanical relationship of bolted flange joint. The changes over...
Proceedings Papers

Proc. ASME. PVP2022, Volume 2: Computer Technology and Bolted Joints; Design and Analysis, V002T03A035, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-84895
... design type 316L austenitic stainless steel creep creep-fatigue Proceedings of the ASME 2022 Pressure Vessels & Piping Conference PVP2022 July 17-22, 2022, Las Vegas, Nevada, USA PVP2022-84895 HIGH-TEMPERATURE DESIGN OF 700°C HEAT EXCHANGER IN A LARGE SCALE HIGHTEMPERATURE THERMAL ENERGY STORAGE...
Proceedings Papers

Proc. ASME. PVP2022, Volume 3: Fluid-Structure Interaction; High Pressure Technology, V003T05A016, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-84215
... on the Compact Flange example the design process and challenges related with high temperature conditions will be discussed. The definition of the critical temperature will be defined based on material creep properties. Design techniques used to predict long term connection behavior including bolt relaxation...