... 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 of the ASME 2021 Pressure Vessels & Piping Conference PVP2021 July 13-15, 2021, Virtual, Online PVP2021-61658 EVALUATION OF PRIMARY-LOAD EFFECTS ON CREEP-FATIGUE LIFE OF ALLOY 617 USING SIMPLIFIED MODEL TEST METHOD Yanli Wang Peijun Hou Oak Ridge National Laboratory University...

... IV nuclear reactor concept to 800H, creep-fatigue. nuclear service needed elevated temperature component analy- NOMENCLATURE sis and design methodologies. These components experience el- 0 Threshold stress evated temperature loads such as creep, fatigue, creep-fatigue, Total strain rate...

... in a number of key areas to address some known shortfalls in the available design codes and standards. These include 1) probabilistic design, 2) thin section defect tolerance and 3) creep-fatigue behaviour. This paper provides a summary of the current findings and an overview of the planned activities...

...Abstract Abstract Current ASME Section III, Division 5 code provides elastic, simplified inelastic and inelastic analysis options for designing nuclear power plant components for elevated temperature service. These analyses methods may fail to capture the complex creep-fatigue response...

... thermal stress. The effects of ratcheting and creep-fatigue damage under elevated temperature are investigated using elastic analysis and inelastic analysis methods for a defined representative load cycle. In addition, the strain range and the stress relaxation history calculated by elastic and inelastic...

...Abstract Abstract In this study, to determine appropriate cyclic hardening model for simulating creep-fatigue crack growth, sensitivity of hardening model on global/local deformation behavior during creep-fatigue crack growth is studied using finite element (FE) debonding analysis method. Three...

...Abstract Abstract For the assessment of welds under high-temperature conditions in the creep or creep-fatigue regimes, the knowledge on the damage location and its temporal evolution are of high importance. The failure behavior of similar welds of ferritic-martensitic steels in the creep regime...

...Abstract Abstract The Simplified Model Test (SMT) approach is an alternative creep-fatigue evaluation method that no longer requires the use of the damage interaction diagram, or D-diagram. The reason is that the combined effects of creep and fatigue are accounted for in the test data by means...

... pressurization and displacement-controlled creep-fatigue loading on the SMT cycle life is demonstrated at different strain ranges. The effect of primary load on the SMT design method is discussed. Simplified Model Test creep-fatigue internal pressurization elastic follow-up EFFECT OF INTERNAL...

...FINITE ELEMENT ANALYSIS OF PRINTED CIRCUIT HEAT EXCHANGER CORE FOR CREEP AND CREEP-FATIGUE RESPONSES Heramb P. Mahajan North Carolina State University Raleigh, NC, USA 27606 Email: hpmahaja@ncsu.edu Tasnim Hassan North Carolina State University Raleigh, NC, USA 27606 Email: thassan@ncsu.edu...

... 21 08 2009 The R5 procedures have been developed within the UK power generation industry to assess the integrity of nuclear and conventional plant operating at high temperatures. Within R5, there are specific procedures for assessing creep-fatigue crack initiation in initially defect...

... 21 08 2009 High temperature components in thermal power plants are subjected to creep and creep-fatigue loading where creep voids initiate and grow on grain boundaries. Development of a quantitative evaluation method of the void growth is important for reliable maintenance...

... 04 08 2008 High temperature components in thermal power plants are subjected to creep-fatigue loading where creep cavities initiate and grow on grain boundaries. Development of a quantitative evaluation method of cavity growth is important for reliable maintenance of these components...