... Finland Sergio Cicero University of Cantabria Avda. de los Castros s/n 39005 Santander Spain Helen Swan Hannah Wilcox NNL Building D5 Culham Science Centre OX14 3DB UK ABSTRACT The FRACTESUS project aims to determine the effect of specimen size on the fracture toughness properties. The project has entered...

...Proceedings of the ASME 2024 Pressure Vessels & Piping Conference PVP2024 July 28-August 2, 2024, Bellevue, Washington PVP2024-123136 BIAXIAL CONSTRAINT EFFECT ON FRACTURE TOUGHNESS EVALUATION OF REACTOR PRESSURE VESSEL UNDER PRESSURIZED THERMAL SHOCK EVENTS Masaki Shimodaira Japan Atomic Energy...

... hydride morphology fracture toughness Zr-2.5Nb pressure tube Abstract The CSA Standard N285.8 requires evaluation of service conditions for protection against fracture of operating Zr-2.5Nb pressure tubes in CANDU ®1 reactors, as well as demonstration of Leak-Before-Break. Zr-2.5Nb...

... master curve method fracture toughness small specimen reactor pressure vessel steel Abstract The Master Curve (MC) standard ASTM E1921 [1] employs two different censoring requirements on measured fracture toughness values (K Jc ) to avoid the combined effects of (#1) excessive plastic...

... duplex stainless steel allowable stresses fracture toughness charpy impact energy embrittlement Abstract Hence, the overall aim with the paper is to evaluate if leaner duplex stainless steels such as S32101 and S82441 justify a broader use as a cost-effective alternative to more...

... vintage linepipe hydrogen fatigue crack growth fracture toughness subcritical crack growth time dependent cracking Abstract This paper focuses on the use of a variety of different small scale test methods to assess the fracture resistance of the material in gaseous hydrogen and study...

... electrofusion joints. electrofusion joint crack propagation failure fracture toughness bursting test finite element analysis Proceedings of the ASME 2024 Pressure Vessels & Piping Conference PVP2024 July 28-August 2, 2024, Bellevue, Washington PVP2024-123193 INVESTIGATION ON CRACK PROPAGATION...

... describes some of the factors involved in characterizing materials for a pressure vessel design, but also presents a general approach that should be applicable to other strain rate sensitive materials. In this paper we consider the measurement of fracture toughness and other material properties at different...

... of welding parameters. This paper expands the previously published information, presenting new experimental findings on the FCGR behavior of welded joints made from a low a carbon weldable high strength steel, P690 QL2 ([4]). hydrogen embrittlement fatigue fracture toughness Proceedings...

... in the CO 2 stream of CCS can potentially cause materials integrity challenges in terms of corrosion, fracture toughness and fatigue performance. For example, CO 2 streams from pre-combustion capture of Blue Hydrogen (BH) production can contain hydrogen as an impurity, which can cause Hydrogen...

... toughness of pipe/weld materials is influenced by the level of constraint at the crack tip. As a result, SENT tests are being used to evaluate the fracture toughness, due to the similarity in constraint between SENT specimens and FS pipes, rather than strain characteristics. The objective of this study...

... Abstract It is recognized that oxygen gas impurities can inhibit the deleterious effects of hydrogen gas on mechanical properties of steels. Most commonly, the effect of oxygen on hydrogen assisted fatigue has been studied. An increase in the measured hydrogen-assisted fracture toughness has...

... Abstract In this paper, the fundamental material behavior and mechanical properties of linepipe steel in a high-pressure hydrogen environment were investigated. A fracture toughness test was carried out using the unloading compliance method (described in ASTM E1820) in 21-MPa hydrogen using...

... Abstract In the UK, high-integrity components for new nuclear reactors are subjected to extensive fracture toughness testing (FTT) qualification programmes to ascertain their resistance to ductile fracture and justify the toughness values used in safety case arguments. One cost-effective route...

... (RPV) steels. The ASTM E1921 standard is used extensively to estimate fracture toughness of ferritic steels in the ductile-to-brittle transition region. Because of the inherent low constraint of small specimens, many test results exceed the fracture toughness limit specified in the standard, resulting...

... conditions from higher toughness population of bimodal distribution are not free of censoring due to the plastic deformation even within the test temperature range within T=To±50oC as specified in E1921. Keywords: Reactor Pressure Vessel Steels, Fracture Toughness, Master Curve Method, Miniature C(T...

... Industry (CRIEPI), 2-6-1, Nagasaka, Yokosuka-shi, Kanagawa-ken, 2400196, Japan ABSTRACT The present paper provides a summary of an inter-laboratory round robin on the fracture toughness testing and Master Curve application on unirradiated materials. First, a validation exercise was performed...

... for fracture toughness characterization in the transition regime to determine reference temperature (T 0 ) based on the master curve method. However, application of miniature testing techniques on irradiated materials in hot cells comes along with several technical challenges such as remote controlled...

... Abstract The appropriate test method for determination of reference temperature (T o ) using the Master Curve is necessary for the structural integrity assessment of the reactor pressure vessel, prescribed in ASME CC N-830-1 and JEAC4206-2016. T o can be determined using the fracture toughness...

... Abstract Short carbon fiber reinforced thermoplastic composites (SCFRTCs) are widely applied in aerospace, transportation, shipping, and other fields because of their excellent mechanical properties and high recyclability. The fracture toughness, which is an essential characteristic...