Academic literature on the topic 'Croissance des fissures de fatigue'
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Journal articles on the topic "Croissance des fissures de fatigue"
Azari, Z., and G. Pluvinage. "Utilisation d'un modèle probabiliste pour l'évaluation des différents stades de croissance de fissures et de l'endommagement en fatigue oligocyclique à chaud." Matériaux & Techniques 82, no. 8-9 (1994): 33–38. http://dx.doi.org/10.1051/mattech/199482080033.
Full textMcEvily, A. J., Masahiro Endo, S. Cho, J. Kasivitamnuay, and Hisao Matsunaga. "Fatigue Striations and Fissures in 2024-T3 Aluminum Alloy." Materials Science Forum 567-568 (December 2007): 397–400. http://dx.doi.org/10.4028/www.scientific.net/msf.567-568.397.
Full textLin, Szu-Ting, Alastair K. Foote, Nicholas M. Bolas, Vanessa G. Peter, Rachel Pokora, Hayley Patrick, David R. Sargan, and Rachel C. Murray. "Three-Dimensional Imaging and Histopathological Features of Third Metacarpal/Tarsal Parasagittal Groove and Proximal Phalanx Sagittal Groove Fissures in Thoroughbred Horses." Animals 13, no. 18 (September 14, 2023): 2912. http://dx.doi.org/10.3390/ani13182912.
Full textJendoubi, K., and S. Hamza. "Fissures de fatigue sous chargement biaxial. Contrôle de la propagation des fissures et évaluation de l’effet de fermeture." Matériaux & Techniques 86, no. 3-4 (1998): 33–41. http://dx.doi.org/10.1051/mattech/199886030033.
Full textMonchiet, Vincent, Éric Charkaluk, and Djimedo Kondo. "Un modèle micromécanique pour la nucléation de fissures en fatigue polycyclique." Mécanique & Industries 8, no. 6 (November 2007): 537–43. http://dx.doi.org/10.1051/meca:2007077.
Full textHenaff, G., C. Sarrazin, S. Lesterlin, and J. Petit. "Modélisation de la propagation des fissures de fatigue : influence de l’environnement ambiant." Revue de Métallurgie 91, no. 9 (September 1994): 1342. http://dx.doi.org/10.1051/metal/199491091342.
Full textYahiaoui, Reda, and Bachir Ait Saadi. "Modélisation de la propagation des fissures courtes en fatigue dans le cas du 316L." Mécanique & Industries 11, no. 5 (September 2010): 379–84. http://dx.doi.org/10.1051/meca/2010066.
Full textMolins, R., A. Pineau, and E. Andrieu. "Oxydation et propagation des fissures en fatigue-fluage dans des alliages à base de nickel." Le Journal de Physique IV 10, PR4 (March 2000): Pr4–259—Pr4–264. http://dx.doi.org/10.1051/jp4:2000436.
Full textArdy, Husaini, Asep Nurimam, Mohammad Hamdani, Deny Firmansyah, Dominico Michael Aditya, Asep Ridwan Setiawan, and Arie Wibowo. "Failure Analysis of Bank-Wall Side Boiler Tube in a Petrochemical Plant." Metals 12, no. 12 (November 30, 2022): 2064. http://dx.doi.org/10.3390/met12122064.
Full textPetit, J., and A. Zeghloul. "Influence de l'environnement et de la microstructure sur la propagation en fatigue des fissures courtes tridimensionnelles." Revue de Physique Appliquée 24, no. 9 (1989): 905–13. http://dx.doi.org/10.1051/rphysap:01989002409090500.
Full textDissertations / Theses on the topic "Croissance des fissures de fatigue"
Demulsant, Xavier. "Facteurs microstructuraux gouvernant l'amorçage et la croissance des fissures de fatigue dans les alliages de titane." Poitiers, 1994. http://www.theses.fr/1994POIT2367.
Full textHaddar, Nader. "Fatigue thermique d'un acier inoxydable austénitique 304L : simulation de l'amorçage et de la croissance des fissures courtes en fatigue isotherme et anisotherme." Phd thesis, École Nationale Supérieure des Mines de Paris, 2003. http://tel.archives-ouvertes.fr/tel-00005750.
Full textLa deuxième partie sintéresse au calcul de durées de vie. À travers une représentation énergétique des résultats, nous avons discuté la validité du modèle de durée de vie en nous basant sur une analyse assez simplifiée. Deux approches sont présentées, avec pour chaque cas une comparaison des durées de vie expérimentales aux durées de vie obtenus expérimentalement en fatigue isotherme à 90 et 165°C et en fatigue mécano-thermique. Le modèle de durée de vie retenu a été validé en fatigue isotherme à 90 et 165°C ainsi quen fatigue mécano-thermique.
Ouarabi, Mohand Ouramdane. "Influence de la fréquence de chargement sur la résistance à l'amorçage et la croissance des fissures de fatigue dans des aciers utilisés dans des applications mécaniques exigeantes." Thesis, Paris 10, 2018. http://www.theses.fr/2018PA100034.
Full textFatigue tests can be performed in a similar frequency range, but the higherfrequencies are generally preferable to reduce the test time and obtain results within areasonable time. The question remains whether a frequency effect exists. This study dealswith the effect of the loading frequency on fatigue strength and crack growth of 3 steels(M800HY, CP1000 and DP1180) used in automotive industry. Two load ratios (R = -1 and0.1) and five load frequencies (25 Hz, 30 Hz, 150 Hz and 20 kHz) were studied. First, weperformed dynamics finite element method to calculate the dimensions of the specimens(to vibrate with a resonance at 20 kHz), and, the stress intensity range as a function of the length of crack. Then, we have done some test on fatigue crack initiation and propagation. Whatever the loading frequency, the initiation of the fatigue crack is always on the surfacebecause of the stress concentrations due to the rolling process or the electro-galvanization.The observation with SEM of fracture surface of the specimens tested at 30 Hz and 20 kHzshows that the mode of propagation is transgranular with some locations of intergranularfailure or by cleavage on DP1180 grade. The fatigue striation on fracture surface arepresent on the M800HY and absent on the other two materials. The grade DP1180 has abetter resistance to the initiation and propagation of the crack. Regarding the effect ofloading frequency, overall the initiation of the fatigue crack is dependent on the loadingfrequency, however, the propagation is independent of the loading frequency
Lieurade, Henri-Paul. "Comportement mécanique et métallurgique des aciers dans le domaine de la fatigue oligocyclique étude des phénomènes et application à la croissance des fissures /." Metz : Université de Metz, 2008. ftp://ftp.scd.univ-metz.fr/pub/Theses/1978/Lieurade.Henri_Paul.SMZ7805.pdf.
Full textUribe, Suarez Diego Alejandro. "Combinaison d’éléments cohésifs et remaillage pour gérer la propagation arbitraire du chemin de fissure : des matériaux fragiles à l’analyse de fatigue thermique des petits corps du système solaire." Thesis, Université Côte d'Azur, 2021. http://www.theses.fr/2021COAZ4047.
Full textThe present PhD thesis aims at providing a better modeling of fracture phenomenon in brittle materials, with special attention focused on fracture processes taking place in astronomical bodies. One of the most challenging issues in computational fracture mechanics is the propagation of a crack through a finite element mesh for arbitrary crack paths. In this work, this problem is approached by means of an advanced remeshing technique that propagates a crack using cohesive elements through arbitrary directions (mesh-independent). The crack direction is computed using the maximal energy release rate criterion which is implemented using finite elements and the Gθ method. The effects of different numerical and physical parameters regarding the crack path and fracture energy have been investigated. Even though it has been shown that temperature cycles on airless bodies of our Solar System can cause damaging of surface materials (Thermal cracking), propagation mechanisms in the case of space objects are still poorly understood. Thermal cracking of surface rocks, in addition to the impact of micrometeorties, can eventually lead to rocks’ breakup and produce fresh regolith, the latter being the layer of unconsolidated material that covers planetary surfaces. For this reason, the present work combines a thermoelasticity model together with linear elastic fracture mechanics theory to predict fracture propagation in the presence of thermal gradients generated by diurnal temperature cycling and under conditions similar to those existing on asteroid (101955) Bennu. Using the implemented methodologies, it is found that in asteroid Bennu, cracks preferentially propagate in the North to South (N-S), in the North-East to South-West (NE-SW) and in the North-West to South-East (NW-SE) directions. Finally, thermal fatigue analysis was performed in order to estimate the crack growth rate.Aforementioned methodologies have been implemented in Cimlib, a C++ in-house finite element library developed at CEMEF. Inside Cimlib, a methodology allowing two-dimensional crack propagation through arbitrary directions with the option of handling multiple cracks in the domain and inside a parallel environment was developed. Regarding three-dimensional scenario, a first approach where a crack front was propagated through an arbitrary direction was achieved. Concerning numerical modeling of crack propagation, the developed framework opens new possibilities for various applications such as composites cracking at the meso-scale
Didych, Iryna. "Estimation of structural integrity and lifetime of important structural elements." Electronic Thesis or Diss., Université Clermont Auvergne (2021-...), 2021. http://www.theses.fr/2021UCFAC116.
Full textThis work has been performed under co-tutelle supervision between Ternopil IvanPuluj National Technical University in Ternopil (Ukraine) and UniversityClermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal in Clermont-Ferrand (France).This thesis solves the scientific task of responsible structural elements strength andlifetime evaluation. The aim of the thesis is to evaluate the strength and residuallifetime of structural elements by machine learning methods.Most parts of machines and structural elements while being in service are under theinfluence of loads of various nature. Such forces are applied either directly to theelement or transmitted through neighbor elements connected to it. For the normaloperation of the responsible structures parts, each element must have certain sizeand shape that will withstand the loads acting on it. In particular, it must haveappropriate strength properties, not deform significantly under the action ofstresses, be rigid, and preserve its original shape.The calculated residual lifetime of machines and structures can be predicted usingfatigue crack growth (FCG) diagrams. Often, the experimental data have a certainspread, which should be taken into account in their analysis. The experimentalmethod often takes a lot of time and human resources. Therefore, it is advisable tolearn how to calculate the residual lifetime using machine learning methods,particularly, neural networks, boosted trees, random forests, support-vectormachines and the method of k–nearest neighbors
Tamine, Tawfik. "Amorçage de fissures par fatigue-contact." Metz, 1994. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1994/Tamine.Tawfik.SMZ9418.pdf.
Full textThe present thesis is a contribution to the knowledge of the shelling process caused by a contact fatigue. This phenomenon appears under a surface submitted to a quasi punctual loading and initiates at an inclusion which is the most probable site for crack initiation. The direction of propagation is associated with the stress distribution resulting from a complex loading. To understand this phenomenon, we present : a bibliographical study to collect the different works related to stress concentration, crack initiation criteria and the stress distribution in the vicinity of a defect. An experimental study for the simulation of crack initiation under the three modes of loading. A finite element calculation from which we have derived new initiation criteria. We have shown that they best fit the experimental results by comparison with those given in the literature
TAMINE, TAWFIK Pluvinage Guy. "AMORCAGE DE FISSURES PAR FATIGUE CONTACT /." [S.l.] : [s.n.], 1994. ftp://ftp.scd.univ-metz.fr/pub/Theses/1994/Tamine.Tawfik.SMZ9418.pdf.
Full textBignonnet, André. "Sur la propagation des fissures de fatigue." Paris, ENSAM, 1991. http://www.theses.fr/1991ENAM0021.
Full textNguedjio, Fouepe Calvin. "Amorçage des fissures de fatigue et probabilisation." Compiègne, 1989. http://www.theses.fr/1989COMPD196.
Full textBooks on the topic "Croissance des fissures de fatigue"
Wu, Xijia. Deformation and Evolution of Life in Crystalline Materials: An Integrated Creep-Fatigue Theory. Taylor & Francis Group, 2019.
Find full textDeformation and Evolution of Life in Crystalline Materials: An Integrated Creep-Fatigue Theory. Taylor & Francis Group, 2019.
Find full textWu, Xijia. Deformation and Evolution of Life in Crystalline Materials: An Integrated Creep-Fatigue Theory. Taylor & Francis Group, 2019.
Find full textSmithil, Pierre john. Symptômes de Carence en Vitamine B6: Fissures et Plaies Sur les lèvres, Sensations de Picotements, Immunité Affaiblie Éruptions Cutanées, Fatigue, Plaies Sur la Langue, Saisies, Brouillard Cérébral, des Changements D'humeur. Independently Published, 2021.
Find full textBook chapters on the topic "Croissance des fissures de fatigue"
McEvily, A. J., Masahiro Endo, S. Cho, J. Kasivitamnuay, and Hisao Matsunaga. "Fatigue Striations and Fissures in 2024-T3 Aluminum Alloy." In Materials Science Forum, 397–400. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-469-3.397.
Full textFAVIER, Véronique, André GALTIER, Rémi MUNIER, and Bastien WEBER. "Compromis entre résistance mécanique et tenue en fatigue." In Le développement des aciers à très haute résistance, 109–36. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9122.ch4.
Full textConference papers on the topic "Croissance des fissures de fatigue"
Hénaff, G., and F. Menan. "Influence de l'environnement sur la propagation des fissures de fatigue." In PlastOx 2007 - Mécanismes et Mécanique des Interactions Plasticité - Environnement. Les Ulis, France: EDP Sciences, 2009. http://dx.doi.org/10.1051/ptox/2009017.
Full textDeVine, Ryan, Yu Qian, Yi Wang, Shaofeng Wang, and Dimitris Rizos. "Characterize Rail Crack Pattern Through Image Analysis." In 2020 Joint Rail Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/jrc2020-8121.
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