Results 31 to 40 of about 388 (137)

Study of Mixed-Mode Cracking of Dovetail Root of an Aero-Engine Blade Like Structure

open access: yesApplied Sciences, 2019
Aerospace structures must be designed in such a way so as to be able to withstand even more flight cycles and/or increased loads. Damage tolerance analysis could be exploited more and more to study, understand, and calculate the residual life of a ...
Giacomo Canale   +4 more
doaj   +1 more source

Analysis of Fatigue Crack Propagation in Steel I-Beams with Welded Transverse Stiffeners Subjected to In-Plane Loadings [PDF]

open access: yes, 2017
Fatigue crack propagation represents the mechanical damage that shortens the service life of bridge structures. Most fatigue cracks initiate at the welded details due to geometric discontinuities, residual stresses and initial weld defects.
Lenwari, Akhrawat   +1 more
core   +2 more sources

Comparison of the response of different configurations of aircraft repair patches under static and dynamic loading [PDF]

open access: yes, 2020
In the modern era of transportation, air travel has gained a huge pace and still kept increasing. The global demand for air transport is increasing at a rate of 6%, because of population growth and ticket price reductions.
Pitta, Siddharth
core   +2 more sources

Study of alternatives and experimental validation for predictions of hole-edge fatigue crack growth in 42CrMo4 steel [PDF]

open access: yes, 2018
The objective of this work is to establish pertinent criteria allowing an optimal alternative to be chosen for calculating the inputs needed to make Run/Repair/Replace decisions and to program inspection plans for cracked wind turbine bearing rings. With
Torca, Ireneo
core   +1 more source

Research on the Rule and Life Prediction of Tooth Root Crack Propagation based on Fatigue Experiment and Numerical Analysis Method

open access: yesJixie chuandong, 2022
Through the fatigue test of modified spur gear with root crack fault by fatigue testing machine,the rule of root crack propagation is obtained,the root crack is easier to expand along the direction of tooth width than the direction of tooth root, and the
Mouqing Zhang   +6 more
doaj  

Static fracture and modal analysis simulation of a gas turbine compressor blade and bladed disk system [PDF]

open access: yes, 2016
This paper presents a methodology for conducting a 3-D static fracture analysis with applications to a gas turbine compressor blade. An open crack model is considered in the study and crack-tip driving parameters are estimated by using 3-D singular crack-
A Saito   +15 more
core   +2 more sources

Neural networks for fatigue crack propagation predictions in real-time under uncertainty [PDF]

open access: yes, 2023
Crack propagation analyses are fundamental for all mechanical structures for which safety must be guaranteed, e. g. as for the aviation and aerospace fields. The estimation of life for structures in presence of defects is a process inevitably affected by
Armentani E.   +5 more
core   +1 more source

Vision‐based fatigue crack automatic perception and geometric updating of finite element model for welded joint in steel structures

open access: yesComputer-Aided Civil and Infrastructure Engineering, Volume 39, Issue 11, Page 1659-1675, 1 June 2024.
Abstract Digital twin requires establishing a self‐updated model to simulate the structural damage perceived onsite. Despite the great success in damage identification and quantification, the difficulty in registration still limits the efficiency of model updating.
Tian Gao   +3 more
wiley   +1 more source

Fatigue improvement of rib-to-deck welded joints using adhesively bonded steel patches - LEFM-based parametric study [PDF]

open access: yes, 2023
Rib-to-deck welded joints in orthotropic steel decks of bridges are prone to develop fatigue cracks. Repairing such cracks allows for prolonging the life of the infrastructure, provided that structural safety is guaranteed.
Leonetti, Davide   +3 more
core   +1 more source

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