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相关论文: Surface energy and stability of stress-driven disc…

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The paper establishes exact lower bound on the effective elastic energy of two-dimensional, three-material composite subjected to the homogeneous, anisotropic stress. It is assumed that the materials are mixed with given volume fractions…

数学物理 · 物理学 2014-01-29 Andrej Cherkaev , Grzegorz Dzierzanowski

Surface incompressibility, also called inextensibility, imposes a zero-surface-divergence constraint on the velocity of a closed deformable material surface. The well-posedness of the mechanical problem under such constraint depends on an…

数值分析 · 数学 2015-07-28 Gustavo C. Buscaglia

We investigate the thermodynamic limit of the exact solution, which is given by an inhomogeneous $T-Q$ relation, of the one-dimensional supersymmetric $t-J$ model with unparallel boundary magnetic fields. It is shown that the contribution…

数学物理 · 物理学 2018-10-16 Fakai Wen , Junpeng Cao , Tao Yang , Kun Hao , Zhan-Ying Yang , Wen-Li Yang

We consider an interface with surface tension that separates a perfectly conducting inviscid fluid from a vacuum. The fluid flow is governed by the equations of ideal compressible magnetohydrodynamics (MHD), while the electric and magnetic…

偏微分方程分析 · 数学 2024-09-24 Yuri Trakhinin

The Casimir Energy of a spherical surface characterized by its surface impedance is calculated. The material properties of the boundary are described by means of the Drude model, so that a generalization of previous results is obtained. The…

高能物理 - 理论 · 物理学 2014-08-12 Luigi Rosa , Lucia Trozzo

The cosmological constant is estimated by considering the surface tension of supervoids in a void-dominated cosmic fluid by which we can get a possible source of dark energy. Looking at voids as bubbles, we define the concept of surface…

宇宙学与河外天体物理 · 物理学 2022-07-25 E. Yusofi , M. Khanpour , B. Khanpour , M. Ramzanpour , M. Mohsenzadeh

A consistent treatment of the coupling of surface energy and elasticity within the multi-phase- field framework is presented. The model accurately reproduces stress distribution in a number of analytically tractable, yet non-trivial, cases…

介观与纳米尺度物理 · 物理学 2018-01-17 Raphael Schiedung , Ingo Steinbach , Fathollah Varnik

The formation energy of a solid surface can be extracted from slab calculations if the bulk energy per atom is known. It has been pointed out previously that the resulting surface energy will diverge with slab thickness if the bulk energy…

材料科学 · 物理学 2009-10-28 V. Fiorentini , M. Methfessel

The transport of energy in a moving fluid with a simply connected free surface is analyzed, taking into account the contribution of surface tension. This is done by following a "control volume" with arbitrary, specified velocity,…

流体动力学 · 物理学 2021-06-02 Tomas Bohr , Bernhard Scheichl

Strain relaxations of a p(1x2) ordered oxygen layer on W(110) are measured as a function of temperature across the disordering transition using low-energy electron diffraction. The measured strains approach values of 0.027 in the [1-10] and…

材料科学 · 物理学 2015-05-18 N. Stojic , T. O. Mentes , N. Binggeli , M. A. Nino , A. Locatelli , E. Bauer

The thermodynamics and mechanics of the surface of a deformable body are studied here, following and refining the general approach of Gibbs. It is first shown that the 'local' thermodynamic variables of the state of the surface are only the…

统计力学 · 物理学 2019-06-27 Juan Olives

We consider a free-boundary problem for the incompressible elastodynamics describing the motion of an elastic medium in a periodic domain with a moving boundary and a fixed bottom under the influence of surface tension. The local…

偏微分方程分析 · 数学 2024-11-05 Longhui Xu

We investigate connections between the continuum and atomistic descriptions of deformable crystals, using certain interesting results from number theory. The energy of a deformed crystal is calculated in the context of a lattice model with…

数学物理 · 物理学 2020-07-02 Phoebus Rosakis

With an aim to include the contribution of surface tension in the action of the boundary, we define the tangential pressure in terms of surface tension and Normal curvature in a more naturally geometric way. First, we show that the negative…

广义相对论与量子宇宙学 · 物理学 2013-01-21 Himanshu kumar , Sharf Alam , Suhail Ahmad

Examination of symmetry energy is carried out on the basis of an elementary binding-energy formula. Constraints are obtained on the energy value at the normal nuclear density and on the density dependence of the energy at subnormal…

核理论 · 物理学 2017-08-23 P. Danielewicz

Surface/edge energy is typically modeled as a continuous function of orientation, $\gamma({\bf n})$. We put forward a simple geometric argument that suggests this picture is inadequate for crystals with a non-Bravais lattice structure. In…

材料科学 · 物理学 2018-01-15 Tim Krumwiede , Tim Schulze

The surface free energies, interfacial tensions and correlation lengths of the Andrews-Baxter-Forrester models in regimes III and IV are calculated with fixed boundary conditions. The interfacial tensions are calculated between arbitrary…

凝聚态物理 · 物理学 2007-05-23 David L. O'Brien , Paul A. Pearce

We consider the governing equations for the motion of the inviscid fluids in two moving domains and an evolving surface from an energetic point of view. We employ our energetic variational approaches to derive inviscid multiphase flow…

数学物理 · 物理学 2024-01-10 Hajime Koba

Semi-empirical mass formula of the atomic nucleus describe binding energies of the nuclei. In the simple form of this formula, there are five terms related to the properties of the nuclear structure. The coefficients in each terms can be…

核理论 · 物理学 2016-12-12 Serkan Akkoyun , Tuncay Bayram

We analyze the surface energy and boundary layers for a chain of atoms at low temperature for an interaction potential of Lennard-Jones type. The pressure (stress) is assumed small but positive and bounded away from zero, while the…

概率论 · 数学 2021-01-22 Sabine Jansen , Wolfgang König , Bernd Schmidt , Florian Theil