Πλοήγηση ανά Θέμα "Cracks"
Αποτελέσματα 1-20 από 27
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Analytical modeling of fatigue crack propagation based on cyclic hardening and a characteristic damage length
(2020)An analytical fatigue crack growth model is developed, which combines effectively a cyclic energy dissipation approach and the strain energy density theory. The model uses cyclic material properties and relies on cyclic ... -
A Bayesian methodology for crack identification in structures using strain measurements
(2010)A Bayesian system identification methodology is presented for estimating the crack location, size and orientation in a structure using strain measurements. The Bayesian statistical approach combines information from measured ... -
Bayesian optimal sensor placement for crack identification in structures using strain measurements
(2018)A Bayesian framework is presented for finding the optimal locations of strain sensors in a plate with a crack with the goal of identifying the crack properties, such as crack location, size, and orientation. Sensor grids ... -
Design loads on railway substructure-comparative parametric investigation on the influence of fastening stiffness (European and Japanese)
(2012)The existing international bibliography-German, French, AREMA methods- includes various methods for a realistic estimation of loads on track superstructure and the reactions/actions on the sleepers. The magnitude of loads ... -
The effect of cracking on the response and design of diaphragm walls and adjacent buildings
(2015)The development of the bending moment corresponding to the maximum tensile stress the concrete accommodated (relatively low with reference to the capacity of the wall) produces cracking initiation. Despite the fact that ... -
An experimental approach for estimating the effect of heat affected zone (HAZ) microstructural gradient on fatigue crack growth rate in aluminum alloy FSW
(2017)The microstructural gradient of the heat affected zone (HAZ) in aluminum alloy FSW has been simulated experimentally by subjecting the parent alloy to a controlled aging process. The purpose of the simulation is to estimate ... -
EXPERIMENTAL RESEARCH ON IMPROVEMENT OF THE DUCTILITY OF R/C SEISMIC WALLS THROUGH SLIP PREVENTION WITH THE USE OF STEEL RHS
(2022)Several researchers propose placing diagonal reinforcing bars at the base of the wall to treat the shear slip, while others have suggested various ways to address this problem associated with halting the effects incurred ... -
Failure analysis and fatigue life assessment of a redesigned aircraft landing gear component
(2013)The present study deals with the failure analysis, the redesign and the fatigue life assessment of a rod end component of the North American T-2 jet trainer aircraft, nose landing gear (NLG) system. The rod ends suffer ... -
Failure analysis of an aluminum extrusion aircraft wing component
(2016)Purpose - The purpose of this paper is to deal with the failure analysis of a fractured spar stiffener, extruded from 7075-T6 aluminum alloy, which was found in the central wing, trailing edge structure of a military ... -
Fatigue and fracture behavior of pearlitic Grade 900A steel used in railway applications
(2016)In overloaded railway networks, rail surface defects developed under rolling contact fatigue (RCF) if left untreated, may propagate to the bulk of the rail and become critical for its structural integrity. To avoid critical ... -
Fatigue behavior and retained austenite transformation of Al-containing TRIP steels
(2016)In material selection for the design of advanced lightweight automotive steel components, fatigue performance is of particular significance. High strength TRIP steels offer very good cyclic behavior, especially under cyclic ... -
Fatigue crack growth and remaining life assessment of 2024 aluminum with variation in microstructure
(2010)The LTSM-F crack growth model is implemented in the present work for the assessment of crack growth and remaining fatigue life of 2024 aluminium alloy with different microstructure. The effect of microstructure in the crack ... -
Fatigue crack growth assessment of corroded aluminum alloys
(2009)The fatigue crack growth behaviour of pre-corroded aluminum alloy has been investigated analytically. For this purpose the fatigue crack growth LTSM-F model has been implemented and upgraded to account for the local material ... -
Fatigue crack growth of aircraft aluminum alloys
(2008)The microstructural characteristics and the influence of existing corrosion on fatigue crack growth in 2024 T351 aircraft aluminium alloy are investigated. Examined is the elongated grain morphology due to the rolling ... -
Fatigue failure investigation of pre-corroded and laser-welded Al-Cu-Mg-Ag Alloy with different temper condition
(2010)The fatigue failure mechanisms of pre-corroded, laser beam welded Al-Cu-Mg-Ag alloy in different temper conditions (T3,T8) have been investigated. Aging influences the corrosion behavior of laser welds. In the T3 temper, ... -
Fatigue of materials - Influence of microstructure and processing effect of overaging on fatigue crack propagation of 2024 T3 aluminum alloy
(2013)The effect of controlled overaging on fatigue crack propagation (Stage II) in 2024-T3 aluminum alloy was experimentally investigated. Overaging was performed by subjecting the material from initial T3 state to appropriate ... -
Fatigue performance of pre-corroded 6xxx aluminum alloy laser beam welds with dissimilar heat treatment
(2014)The role of existing corrosion damage on the fatigue performance of 6156 AA laser beam welds in T3 state, with additional post weld heat treatment T8, has been assessed. The welds were subjected to salt fog environment for ... -
Fatigue resistance of welded steel tubular X-joints
(2020)High-cycle fatigue experiments are performed on welded tubular steel X-joints, with braces and chord of equal diameter. They are scaled-down joints, used extensively in offshore wind platforms. Three different welding ... -
Influence of plastic prestraining on the fatigue crack propagation rate of S355MC and S460MC structural steels
(2021)Cold forming induces significant plastic deformation at corner locations of structural steel members, resulting in both material strain hardening and the development of residual stresses, which influence the fatigue ... -
Mechanical response of an industrial piping system under strong cyclic loading
(2021)The paper presents a combined experimental and numerical investigation of cyclic loading response of an internally pressurized steel piping system. The piping system comprises three elbows and is subjected to quasi-static ...