I. Maillet
Direction générale de l'armement
Service lifeComposite numberLow frequencyResonanceAeroelasticityPhysicsMode (statistics)Test methodComposite laminatesStrain rateHumanitiesComposite materialEpoxyAmplitudeWork (physics)Materials scienceAmplification factorVibrationFlutterGrowth rateShakerConstant (mathematics)Characterization (materials science)Load ratioFatigue crack propagationComposite structureStrain energy release rateVibration fatigueFracture mechanicsStructural engineeringParis' lawDelaminationFiber pull-outBending
16Publications
3H-index
29Citations
Publications 16
Newest
#1G. Androuin (University of Toulouse)H-Index: 1
#2Laurent Michel (University of Toulouse)H-Index: 9
Last. Xiaojing Gong (University of Toulouse)H-Index: 1
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The study of fatigue delamination growth in composite materials aims to develop a slow-growth approach for composite materials that would provide conservative and reliable results. The present work focuses on the study of the load ratio effect on fatigue crack growth at constant amplitude and on the effect of variable amplitude loading on crack propagation. With this in mind, a Crack Driving Force (CDF) is chosen to attempt to overlap delamination growth curves obtained from different load ratio...
4 CitationsSource
#1I. MailletH-Index: 3
#2Laurent MichelH-Index: 13
1 Citations
#1G. AndrouinH-Index: 1
#2Laurent MichelH-Index: 13
Last. Xiaojing GongH-Index: 1
view all 4 authors...
#1G. AndrouinH-Index: 1
#2I. MailletH-Index: 3
Last. Xiaojing GongH-Index: 1
view all 4 authors...
#1G. AndrouinH-Index: 1
Last. I. MailletH-Index: 3
view all 4 authors...
Mode II crack propagation tests were conducted at high frequencies on carbon fiber/epoxy laminates under vibration fatigue at resonance. In parallel, classical fatigue tests were carried out at 10Hz on a servo-hydraulic machine in order to compare results in terms of Fatigue Crack Growth Rate (FCGR) vs Energy Release Rate (ERR) curves. Different load ratios were considered for classical tests. Frequency and load ratio effects were determined from both high and low frequency tests results. Using ...
#1G. AndrouinH-Index: 1
Last. I. MailletH-Index: 3
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Load ratio effect on fatigue crack propagation is explored on a carbon/epoxy composite material. The fatigue load could be better represented by their amplitude instead of their maximum value. Cumulative damage is then investigated by achieving consecutive fatigue tests on the same specimen. Consequences on the crack growth rate are highlighted. It is shown that the fatigue pre-crack length, as well as the building method of the fatigue pre-crack plays an important role in the fatigue crack prop...
#1I. MailletH-Index: 3
#2Laurent MichelH-Index: 9
Last. Yves GourinatH-Index: 12
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A fatigue crack propagation test under mode II has been set up for unidirectional composite laminate characterization at high frequency. The specimen is clamped on a shaker and loaded on its first bending resonance mode. This dynamical test allows an accurate delamination extension monitoring based on the resonance frequency shift. Dynamical tests are conducted at 260 Hz and 400 Hz and their results are compared to those obtained with 10 Hz 3-ENF tests. Fatigue crack propagation results are pres...
7 CitationsSource
#1I. MailletH-Index: 3
#2Laurent MichelH-Index: 13
Last. Frédéric LachaudH-Index: 15
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La modelisation de structure delaminee sous sollicitation vibratoire est generalement un probleme non-lineaire. En effet, de telles sollicitations peuvent donner lieu a des ouvertures de delaminage modifiant la reponse en deplacement de la structure. La gestion du contact periodique entre les deux levres du delaminage est la difficulte majeure de la representation de ce type de probleme. Dans ce travail, un nouveau modele de gestion du contact considerant la conservation des energies pendant le ...
During their service life aeronautical structures are submitted to vibrations due to aerodynamic turbulent flows around structure and engines. These fluid-structure interactions induce not only sonic acoustic fatigue spectra with low load amplitudes at high frequency range but also buffeting or flutter type fatigue with high loads at lower frequency range. The current static design of composite aircraft covers fatigue loading cases. But with the need to more and more lighten the structure, and w...