Добірка наукової літератури з теми "Chocs aléatoires"
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Статті в журналах з теми "Chocs aléatoires":
Coulombe, Serge, and Frank C. Lee. "Évolution à long terme de la convergence régionale au Canada." Articles 74, no. 1 (February 9, 2009): 5–27. http://dx.doi.org/10.7202/602250ar.
Lalanne, Aurélie, and Martin Zumpe. "La croissance des villes canadiennes et australiennes guidée par le hasard ? Enjeux et mesure de la croissance aléatoire urbaine." Canadian Journal of Regional Science 42, no. 2 (November 9, 2021): 123–29. http://dx.doi.org/10.7202/1083621ar.
Jarero, Ignacio, Lucina Artigas, and Marilyn Luber. "Le protocole EMDR pour les incidents critiques récents : application à un contexte de continuum de soins en santé mentale après une catastrophe." Journal of EMDR Practice and Research 6, no. 2 (2012): E12—E25. http://dx.doi.org/10.1891/1933-3196.6.2.e12.
Cournoyer, A., V. Langlois-Carbonneau, R. Daoust, and J. Chauny. "LO29: Création dune règle de décision clinique pour le diagnostic dun syndrome aortique aigu avec les outils dintelligence artificielle : phase initiale de définition des attributs communs aux patients sans syndrome aortique aigu chez une population à risque." CJEM 20, S1 (May 2018): S16—S17. http://dx.doi.org/10.1017/cem.2018.91.
Diaby, Mahamadou, Yenizié Kone, Kalifa Traore, Alpha Seydou Maiga, and Anewin Moïse Togo. "Analyse des déterminants de l’adoption de la Régénération Naturelle Assistée (RNA) dans la zone soudano-sahélienne : cas des cercles de Diéma et Kolokani au Mali." International Journal of Biological and Chemical Sciences 14, no. 2 (May 12, 2020): 473–85. http://dx.doi.org/10.4314/ijbcs.v14i2.14.
Van der Linden, Bruno. "Numéro 68 - avril 2009." Regards économiques, October 12, 2018. http://dx.doi.org/10.14428/regardseco.v1i0.15543.
Van der Linden, Bruno. "Numéro 68 - avril 2009." Regards économiques, October 12, 2018. http://dx.doi.org/10.14428/regardseco2009.04.01.
Дисертації з теми "Chocs aléatoires":
Luong, Viet Dung. "Etude expérimentale et modélisation numérique des phénomènes d’endommagement par fatigue des emballages." Thesis, Reims, 2020. http://www.theses.fr/2020REIMS012.
In this thesis, we have experimentally characterized compact and corrugated cardboard packaging using specific tests that reproduce transport conditions. After carrying out tensile tests to characterize the orthotropic behavior of papers and cardboard, we determined by static compression tests the box compressive strength (BCT) of the cardboard and corrugated cardboard boxes. For the dynamic analysis, we conducted random vibration and shock experiments on these packages. We then implemented an orthotropic elastoplastic behavior model (IPE) for papers and cardboard in Abaqus software using the VUMAT user program. We also proposed a homogenization of the IPE model for corrugated cardboard, which we implemented in the Abaqus software using the UGENS user program. We have shown that the IPE elastoplastic model allows a very satisfactory description of the static and dynamic behavior of cardboard boxes.The use of the homogenized IPE model allowed, on the one hand, the easy design of the geometry, and on the other hand, the significant reduction in computation times. The results obtained with the homogenized model compared verywell with those obtained with the full 3D model and the experimental results in statics and dynamics. Finally, for the simulation of the fatigue tests, we carried out simulations of successive impact tests until the box was damaged, and we used a fatigue model in the Fe-Safe software to determine the fatigue life of the boxes. The results of the simulations obtained show that our model makes it possible to well reproduce the experimental results for the three endurance zones of the damage boundary curves
Yuldashev, Petr. "Propagation d'ondes de choc dans les milieux aléatoires avec des inhomogénéités distribuées dans l'espace ou dans une couche mince." Phd thesis, Ecole Centrale de Lyon, 2011. http://tel.archives-ouvertes.fr/tel-00728798.
Duchereau, Jérôme. "Modélisation non paramétrique des incertitudes en dynamique transitoire des systèmes complexes avec incertitudes non homogènes." Paris, CNAM, 2004. http://www.theses.fr/2004CNAM0479.
This paper is devoted to numerical models for prediction of transient dynamical response induced by shocks upon structures with inhomogeneous random uncertainties. The usual numerical methods for analyzing such structures in the low- and medium- frequency ranges employ reduced matrix models based on the use of the elastic modes. The contribution of the higher modes is very sensitive to the modelling and data errors. Here, a recent nonparametric probabilistic method is applied to construct the random matrix model allowing modelling and data errors to be taken into account. The paper presents an extension of the nonparametric method for the case of inhomogeneous uncertainties in the structures. A dynamic substructuring method is used and every substructure gets its own uncertainty level. Experiments have been developed in order to validate the nonparametric probabilistic approach of random uncertainties for such dynamical systems
Tacheix, Thierry. "L'influence des variables financières sur l'emploi : France 1970-1988." Clermont-Ferrand 1, 1991. http://www.theses.fr/1991CLF10007.
Huart, Victor. "Développement d'une procédure d'estimation du dommage par fatigue des emballages de transport à partir des données spectrales." Thesis, Reims, 2016. http://www.theses.fr/2016REIMS020.
This thesis is focused on studies of the goods transport induced stresses. Packaging systems are composed of a multitude of functionalities: to transport, to protect, to inform, etc. Their development is an important parameter referring to the goods protection. During transports, goods endure an important panel of mechanical stress. This stress induces damages par fatigue. This damage by fatigue can be studied in decomposing the acceleration signal into stress cycles. This decomposition permits to observe the influence of each stress cycle. This thesis work, in a first step, consists in estimating the damage by fatigue generated during a particular transportation on a given packaging. In this case, stress cycle extraction is not appropriated (continuous record of long transportation is difficult point of view devices). This estimation is realized from the power spectral densities (PSD) and the calculation of the spectral moments of transport phases. The second aim of this work is to develop a simulation protocol inducing the same damage rate on packaging as the actual transportation, in a shorter time. The test time compression method is here based on the damages estimation expression. The aim consists in determining a PSD multiplicative factor to generate a PSD of test witch induce the same damage as the actual transport in a shorter duration. This test time compression take into account the mechanical behavior of damage accumulation for a particular system
Viard, Nicolas. "Contribution expérimentale à l'étude de la diffusion multiple des ultrasons en régimes de propagation linéaire et non linéaire." Phd thesis, Université Paris-Diderot - Paris VII, 2014. http://pastel.archives-ouvertes.fr/pastel-00955942.