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Littérature scientifique sur le sujet « Microstretch materials »

Auteur : Grafiati

Publié le 10 mars 2023

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Articles de revues sur le sujet "Microstretch materials"

Passarella, F., V. Tibullo et V. Zampoli. « On microstretch thermoviscoelastic composite materials ». European Journal of Mechanics - A/Solids 37 (janvier 2013) : 294–303. http://dx.doi.org/10.1016/j.euromechsol.2012.07.002.

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Kirchner, Nina, et E. Kirchner. « Modeling of Generalized Continua on Macroscopic Scales : Towards Computational Mechanics of Microstretch Continua ». Materials Science Forum 539-543 (mars 2007) : 2545–50. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.2545.

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First numerical results for microstretch continua, embedded in a hierarchy of generalized continuum models,will be presented. The governing equations are derived using a variational approach, providing an alternative to Eringens approach of modeling microstretch continua. A constitutive theory for linear elastic microstretch continua is formulated and used in the simulations. Simple examples will be investigated in order to demonstrate the compatibility of the model hierarchy. The results obtained so far are promising and suggest that a further in-depth analysis of (in)elastic microstretch continua based on the here proposed consistent and computationally simple approach to microstructured materials is worthwile.

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Singh, Dilbag, Neela Rani et Sushil Kumar Tomar. « Dilatational waves at a microstretch solid/fluid interface ». Journal of Vibration and Control 23, n^o 20 (9 mars 2016) : 3448–67. http://dx.doi.org/10.1177/1077546316631158.

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The present work is concerned with the study of reflection and transmission phenomena of dilatational waves at a plane interface between a microstretch elastic solid half-space and a microstretch liquid half-space. Eringen's theory of micro-continuum materials has been employed for addressing the mathematical analysis. Reflection and transmission coefficients, corresponding to various reflected and transmitted waves, have been obtained when a plane dilatational wave strikes obliquely at the interface after propagating through the solid half-space. It is found that the reflection and transmission coefficients are functions of the angle of incidence, the frequency of the incident wave and the elastic properties of the half-spaces. Numerical calculations have been carried out for a specific model by taking an aluminum matrix with randomly distributed epoxy spheres as the microstretch solid medium, while the microstretch fluid is taken arbitrarily with suitably chosen elastic parameters. The computed results obtained have been depicted graphically. The results of earlier studies have been deduced from the present formulation as special cases.

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Marin, Marin. « Lagrange identity method for microstretch thermoelastic materials ». Journal of Mathematical Analysis and Applications 363, n^o 1 (mars 2010) : 275–86. http://dx.doi.org/10.1016/j.jmaa.2009.08.045.

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KUMAR, S., J. N. SHARMA et Y. D. SHARMA. « GENERALIZED THERMOELASTIC WAVES IN MICROSTRETCH PLATES LOADED WITH FLUID OF VARYING TEMPERATURE ». International Journal of Applied Mechanics 03, n^o 03 (septembre 2011) : 563–86. http://dx.doi.org/10.1142/s1758825111001135.

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In the present paper, the theory of generalized thermo-microstretch elasticity has been employed to study the propagation of straight and circular crested waves in microstretch thermoelastic plates bordered with inviscid liquid layers (or half-spaces), with varying temperature on both sides. The secular equations governing the wave motion in both rectangular and cylindrical plates have been investigated. The results in the case of thin (long wavelength) and thick (short wavelength) plates have also been obtained and discussed as special cases of this work. The secular equation in the case of microstretch coupled with thermoelastic, micropolar thermoelastic and thermoelastic plates can be obtained from the present analysis by an appropriate choice of relevant parameters. The results have been deduced and compared with the relevant publications available in the literature at the appropriate stages of this work. Finally, the analytical developments have been illustrated numerically for aluminum–epoxy-like material sandwiched in the inviscid liquid. The computer simulated results in respect of phase velocity, attenuation coefficient, specific loss factor of energy dissipation and relative frequency shift due to liquid layers on both sides of the plate are presented graphically.

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Marin, Marin. « A domain of influence theorem for microstretch elastic materials ». Nonlinear Analysis : Real World Applications 11, n^o 5 (octobre 2010) : 3446–52. http://dx.doi.org/10.1016/j.nonrwa.2009.12.005.

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Ieşan, Dorin. « Deformation of heterogeneous microstretch elastic bars ». Journal of Mechanics of Materials and Structures 15, n^o 3 (12 juillet 2020) : 345–59. http://dx.doi.org/10.2140/jomms.2020.15.345.

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Marin, M., I. Abbas et C. Carstea. « A Semi-Group of Contractions in Elasticity of Microstretch Materials ». Journal of Computational and Theoretical Nanoscience 14, n^o 3 (1 mars 2017) : 1634–39. http://dx.doi.org/10.1166/jctn.2017.6488.

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Kumar, Rajneesh, Sanjeev Ahuja et S. K. Garg. « Surface Wave Propagation in a Microstretch Thermoelastic Diffusion Material under an Inviscid Liquid Layer ». Advances in Acoustics and Vibration 2014 (4 août 2014) : 1–11. http://dx.doi.org/10.1155/2014/518384.

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The present investigation deals with the propagation of Rayleigh type surface waves in an isotropic microstretch thermoelastic diffusion solid half space under a layer of inviscid liquid. The secular equation for surface waves in compact form is derived after developing the mathematical model. The dispersion curves giving the phase velocity and attenuation coefficients with wave number are plotted graphically to depict the effect of an imperfect boundary alongwith the relaxation times in a microstretch thermoelastic diffusion solid half space under a homogeneous inviscid liquid layer for thermally insulated, impermeable boundaries and isothermal, isoconcentrated boundaries, respectively. In addition, normal velocity component is also plotted in the liquid layer. Several cases of interest under different conditions are also deduced and discussed.

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Nappa, Ludovico. « THERMAL STRESSES IN MICROSTRETCH ELASTIC CYLINDERS ». Journal of Thermal Stresses 18, n^o 5 (septembre 1995) : 537–50. http://dx.doi.org/10.1080/01495739508946319.

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Thèses sur le sujet "Microstretch materials"

D'Amato, Maria. « Uniqueness and partition of energy for thermomicrostretch elastic solids backward intime ». Doctoral thesis, Universita degli studi di Salerno, 2011. http://hdl.handle.net/10556/138.

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2009 - 2010
In questo lavoro, è mostrata l’unicità delle soluzioni per il problema a ritroso nel tempo della teoria lineare dei materiali elastici termomicrostretch, ed è provata l’impossibilità della localizzazione nel tempo della soluzione del corrispondente problema diretto. Inoltre, è studiato il comportamento temporale a ritroso nel tempo dei processi termoelastodinamici stabilendo le relazioni che descrivono il comportamento asintotico delle medie di Cesàro delle diverse componenti dell’energia totale. [a cura dell'autore]
IX n.s.

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Actes de conférences sur le sujet "Microstretch materials"

Li, Weiming, et Samuel Paolucci. « A Two-Phase Model of Bubbly Fluids ». Dans ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-43113.

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We use a continuum theory for multiphase immiscible mixtures whose individual components are separated by infinitesimally thin interfaces. The average balance equations for the different phases, as well as for the mixture, result from a systematic spatial averaging procedure. In addition to equations for mass, momentum, and energy, together with the entropy inequality, the balance equations also include equations for microinertia and microspin tensors. These equations, together with appropriate constitutive equations consistent with the entropy inequality, enable the modeling of immiscible multiphase materials where internal parameters are important. Here, we apply the results to a simple microstretch bubbly fluid. We show that the equations for microspin and microinertia, under a number of simplifying assumptions, combine to yield a general form of the Rayleigh-Plesset equation.

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