... Abstract Residual stresses are a crucial factor in assessing the integrity of welded joints. These stresses are known to influence the joint’s strength under additional loading, with the altered grain structure at and near the joint a complicating factor. Consequently, a mesoscale model...

... the introduction of compressive residual stress, alleviation of stress concentration at weld toes, and grain refinement beneath the weld toes. Three-dimensional elastic stress analysis showed that the stress concentration factor K t at the weld toe decreased from 3.3 to 2.5 as the UIT transfers the shape...

... Abstract Primary water stress corrosion cracking (PWSCC) has been reported in Alloy 600 components. PWSCC occurs due to a combination of high tensile residual stress, corrosive environment, and susceptible material. Prevention of PWSCC primarily involves mitigating tensile residual stresses...

... Abstract Residual stresses play a pivotal role in influencing the structural integrity of welded structures, a consequence inherent to the welding process itself. In scenarios involving cyclic thermal and mechanical loading during operation, the dynamic transformation of residual stress...

...Proceedings of the ASME 2023 Pressure Vessels & Piping Conference PVP2023 July 16-21, 2023, Atlanta, Georgia PVP2023-107431 FURTHER STUDIES INTO THE IMPACT OF CLADDING RESIDUAL STRESS IN FLAW TOLERANCE ASSESSMENTS OF CLAD VESSELS Ben Pellereau, Joshua White, Andrew Wood Rolls-Royce Derby, UK...

... gradients in the longitudinal direction because of the existence of transitions between hot and cold parts at the ends of the heated zones. These local thermal gradients generate residual stresses which are distributed in the so called “Heated Zone”, including the zone of the weld to be relieved named “Soak...

... microstructures using a new generator for representative volume elements called DRAGen (Discrete Rve Automation and Generation), and a strategy for the numerical investigation of the influence of the surface roughness and residual stresses on the fatigue life and endurance is proposed. The proposed framework...

... Abstract Pipe made from polyethylene with raised temperature (PERT) service capability offers several advantages in terms of material performance, and has broad application in the industry. However, residual stresses are typically present in PE-RT pipe after fabrication, which may affect pipe...

... Abstract The use of residual stress information in probabilistic fracture assessments is hindered by difficulties in the quantification of uncertainty. At the same time, it is often necessary to consider residual stress data derived via two or more independent methods in an assessment...

... Abstract Pressure components are designed to prevent failures; their fabrication has detailed mechanical and manufacturing requirements. However, unforeseen contaminants, installation conditions, residual stresses, field heat treatments, and other unexpected circumstances often determine...

... Abstract Residual stress is one of the most important influence factors in the structural integrity assessment of the nuclear components. However, at the present, there are few examples of residual stress measurements for thick butt-welded plates such as the reactor pressure vessels (RPVs...

... for an overstrain level of 46.7%. rotational autofrettage thick-walled cylinder von Mises elastic-plastic residual stress three-dimensional finite element method Proceedings of the ASME 2021 Pressure Vessels & Piping Conference PVP2021 July 13-15, 2021, Virtual, Online PVP2021-61888 ESTIMATION...

... treatment PWHT residual stress brittle fracture pressure piping PWHT EXEMPTIONS FOR CARBON STEEL IN B31.3: AN EPC CONTRACTOR S PERSPECTIVE Jan-Willem Rensman1, Fluor BV Hoofddorp, the Netherlands George Kraayeveld Fluor BV Hoofddorp, the Netherlands ABSTRACT In the 2014 edition of the ASME B31.3 Code...

... be known as cladding residual stresses. It is thought that in some assessments of clad pressure vessels, the cladding residual stress is either not included, or assumed to be of a significantly reduced magnitude — due to it decreasing at typical operating temperatures and/or being relaxed by prior...

... the effect of inhomogeneties in a Jominy end-quench test specimen subjected to differential cooling rates. The effect of material state encompassing different variables such as surface roughness, microstructure, hardness and residual stress is correlated with the MBN Root Mean Square (RMS) parameter in order...

... initiation has not been extensively studied. For these reason, the purpose of this study was to clarify effect of residual stress on high temperature hydrogen attack (HTHA) and examine the mechanism in terms of microstructure. The specimens that were simulated welding residual stress by four point bending...

... in the presence of welds due to two main reason; a) presence of different material zones, namely parent metal, weld metal and heat affected zone; b) introduction of residual stress during welding. An extended Direct Steady Cycle Analysis within the Linear Matching Method (LMM) framework has been previously...

... Abstract High energy welding technologies, such as electron beam, have a number of potential benefits including: faster process time, smaller heat affected zone and potentially favourable weld residual stresses. Therefore, they are good candidates for manufacturing complex components...

... have been performed on the rolled ring. Radial ring rolling Dynamic explicit finite element analysis Residual stress ANSYS/LS-DYNA Numerical simulation 1 Copyright © 2013 by ASME MODELLING AND SIMULATION OF RADIAL RING ROLLING PROCESS BASED ON FINITE ELEMENT ANALYSES Zhengkun Feng...

... When conducting an assessment of the integrity of a structure the user is directed to classify the stresses as either primary stress or secondary stress. Residual stresses are usually classified as secondary stresses unless they exhibit significant elastic follow-up. In this paper the authors...