...Aijun Xiang; Hao Ma; Bo Xu; Zijian Xu; Ke Liu; Mengli Yan; Yongbo Li; Changqi Luo; Debiao Meng Purpose This study aims to develop a robust notch fatigue life prediction model for hydro turbine components, specifically addressing fatigue failures in welded joints induced by severe stress...

...José António Correia; Iara Oliveira; Cláudio Horas; António Mourão; Abílio de Jesus; Juan Pardal; Sérgio Tavares; Grzegorz Lesiuk Purpose This research aims to determine and evaluate fatigue properties using estimation methods based on the monotonic tensile strength properties of old metallic...

... of the spherical pressure vessel. When combined with small amounts of H2S , it may accelerate fatigue crack propagation, since LPG can contain water and hydrogen sulfide (H2S), a combination that is rarely found in specialized literature. © Emerald Publishing Limited 2025 Emerald Publishing Limited Licensed...

...Wojciech Macek; Aleksandra Mirowska; Przemysław Podulka; Cho-Pei Jiang; Andrea Avanzini; Filippo Berto Purpose The correlation between fatigue response and surface topography of a PEEK composite, in which different preferred orientations of short carbon fibres were present as a result of extrusion...

... estimate of the fatigue strength with only a very small measurement error. Even asymmetries in the thermal boundary conditions of the test setup are broadly tolerated, as well as a lack of thermal isolation. Practical implications The method is restricted to metallic materials without phase transitions...

...Ş. Hakan Atapek; Spiros Pantelakis; Şeyda Polat; Apostolos Chamos; Gülşah Aktaş Çelik Purpose The purpose of this paper is to investigate the fatigue behavior of precipitation-strengthened Cu‒2.55Ni‒0.55Si alloy, modified by the addition of 0.25 Cr and 0.25 Zr (wt%), using mechanical...

... Fatigue Prediction Cyclic loading Constraint Strip yield model The crack conditions are in engineering practice described mostly by parameters of linear elastic fracture mechanics. The stress intensity factor K is the leading parameter together with the crack tip opening displacement...

...Cristiane Oliveira Viana; Hermes Carvalho; José Correia; Pedro Aires Montenegro; Raphael Pedrosa Heleno; Guilherme Santana Alencar; Abilio M.P. de Jesus; Rui Calçada Purpose The purpose of this paper is to evaluate the fatigue process through the dynamic analysis of the global structural model...

...Pedro G.P. Leite; Gilberto Gomes Purpose The purpose of this paper is to present the application of the boundary element method (BEM) in linear elastic fracture mechanics for analysis of fatigue crack propagation problems in mixed-mode (I+II) using a robust academic software named BemCracker2D...

...Nadia Nurnajihah M. Nasir; Salvinder Singh; Shahrum Abdullah; Sallehuddin Mohamed Haris Purpose The purpose of this paper is to present the application of Hilbert–Huang transform (HHT) for fatigue damage feature characterisation in the time–frequency domain based on strain signals obtained from...

... and significantly elongating the service time; and second, the numerical calculation of the reduced stress intensity factor (SIF) range for strengthened cracked steel specimens. Design/methodology/approach One of the successful strengthening methods is the CFRP patching along the fatigue crack paths...

...Yoshihiko Uematsu; Toshifumi Kakiuchi; Akiko Tajiri; Masaki Nakajima Purpose The purpose of this paper is the proposal of fatigue-life-prediction curve for cast aluminum alloy A356-T6 with different casting defect sizes. Design/methodology/approach Four kinds of A356-T6 fatigue specimens were...

...Manuel L. Aenlle; F. Pelayo; Alfonso Fernandez-Canteli Purpose Fatigue failure is an important criterion to be considered in the design of structures and mechanical components. Catastrophic failure of structures in service conditions can be avoided using adequate techniques to detect and localize...

... to improve the performance of the components. Design/methodology/approach The crankshaft, connecting rod and the piston of the engine have been investigated by means of numerical FE models. Numerical fatigue assessments have been performed along with vibrational modes and buckling analysis in order...

... and pitting corrosion. To improve fatigue behaviour in aggressive environments, several authors have proposed the use of different coatings to protect the substrate. Studies have investigated the application of thin hard coatings on light alloys by physical vapour deposition (PVD). Different contributions...

... inspection or other NDT methods. Whether detectable or not, this defect may lead to a significant degradation of the fatigue properties of the welded material, as the improperly welded zone can act as a fracture initiation site. The paper aims to discuss these issues. Design/methodology/approach...

... mechanisms. A physics-based modelling approach to represent metal-metal contact and fatigue in the gears of the planetary transmission of an aircraft system is applied. Findings Both the failure mode caused by metal-metal contact as caused by fatigue in the gears is described. Furthermore, the real-time...

... of pin-loaded lug joints with rigid/elastic pin subjected to fatigue loading by estimating the residual life of the component at any given instance to assist the SHM systems. Design/methodology/approach Straight attachment lug joints with rigid/elastic push-fit pin and smooth pin-hole interface...

...António José Ramos Silva; P.M.G. Moreira; Mario A.P. Vaz; Joaquim Gabriel Purpose Maintenance is one of the most critical and expensive operations during the life cycle of metallic structures, in particular in the aeronautic industry. However, early detection of fatigue cracks is one of the most...

... of a military transport aircraft. The previous loading history and the dominant environmental factors (corrosive and humid atmosphere, water entrapment, etc.) suggest corrosion and fatigue as the principal failure modes, synergistically acting on the wing component. Design/methodology/approach This study...