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The load-area relation of rough surfaces is of great interest in tribology. For elastic-plastic solids with strain hardening, an incremental model is adopted to analyze the contact of rough surfaces, in which the contact is modeled by…

软凝聚态物质 · 物理学 2022-12-28 Yue Ding , Xuan-Ming Liang , Gang-Feng Wang

The application of pure torsion to a long and thin cylindrical rod is known to provoke a twisting instability, evolving from an initial kink to a knot. In the torsional parallel-plate rheometry of stubby cylinders, the geometrical…

软凝聚态物质 · 物理学 2020-09-22 Pasquale Ciarletta , Michel Destrade

When stretched in one direction, most solids shrink in the transverse directions. In soft silicone gels, however, we observe that small-scale topographical features grow upon stretching. A quantitative analysis of the topography shows that…

We have given theoretical expressions for the forces exerted on a quasi-2D flat and smooth solid plate immersed into a liquid pool of a simple liquid. All forces given by the theory, the local forces on the top, the contact line and the…

化学物理 · 物理学 2020-08-26 Yuta Imaizumi , Takeshi Omori , Hiroki Kusudo , Carlos Bistafa , Yasutaka Yamaguchi

New connections between static elastic cloaking, low frequency elastic wave scattering and neutral inclusions are established in the context of two dimensional elasticity. A cylindrical core surrounded by a cylindrical shell is embedded in…

经典物理 · 物理学 2021-03-17 Andrew N. Norris , William J. Parnell

Recent studies of elasto-capillary phenomena have triggered interest in a basic variant of the classical Young-Laplace-Dupr\'e (YLD) problem: The capillary interaction between a liquid drop and a thin solid sheet of low bending stiffness.…

软凝聚态物质 · 物理学 2023-03-15 Gregory Kozyreff , Benny Davidovitch , S. Ganga Prasath , Guillaume Palumbo , Fabian Brau

A fluid constituted of hard spherocylinders is studied using a density functional theory for non-spherical hard particles, which can be written as a function of weighted densities. This is based on an extended deconvolution of the Mayer…

软凝聚态物质 · 物理学 2015-06-18 René Wittmann , Klaus Mecke

A soft solid is said to be initially stressed if it is subjected to a state of internal stress in its unloaded reference configuration. Developing a sound mathematical framework to model initially stressed solids in nonlinear elasticity is…

软凝聚态物质 · 物理学 2022-12-07 Davide Riccobelli , Abramo Agosti , Pasquale Ciarletta

Dispersions of immiscible liquids, such as emulsions and polymer blends, are at the core of many industrial applications which makes the understanding of their properties (morphology, stability, etc.) of great interest. A wide range of…

化学物理 · 物理学 2017-08-10 Anaïs Giustiniani , Wiebke Drenckhan , Christophe Poulard

We examine how disordering joint position influences the linear elastic behavior of lattice materials via numerical simulations in two-dimensional beam networks. Three distinct initial crystalline geometries are selected as representative…

软凝聚态物质 · 物理学 2022-08-31 Antoine Montiel , Thuy Nguyen , Cindy Rountree , Valérie Geertsen , Patrick Guenoun , Daniel Bonamy

An asymptotic analysis is performed for thin anisotropic elastic plate clamped along its lateral side and also supported at a small area $\theta_{h}$ of one base with diameter of the same order as the plate thickness $h\ll1.$ A…

偏微分方程分析 · 数学 2017-04-20 G. Buttazzo , G. Cardone , S. A. Nazarov

The effect of self-affine roughness on solid contact is examined with molecular dynamics and continuum calculations. The contact area and normal and lateral stiffnesses rise linearly with the applied load, and the load rises exponentially…

介观与纳米尺度物理 · 物理学 2015-05-20 Sreekanth Akarapu , Tristan Sharp , Mark O. Robbins

We derive a model for the finite motion of a magneto-elastic rod reinforced with isotropic (spherical) or anisotropic (ellipsoidal) inclusions. The particles are assumed weakly and uniformly magnetised, rigid and firmly embedded into the…

应用物理 · 物理学 2018-02-07 Jacopo Ciambella , Antonino Favata , Giuseppe Tomassetti

Confined geometries offer useful and experimentally amenable mechanical testing arrangements in which to study the molecular and micro-structural processes which govern plastic yield in stress environments dominated by hydrostatic pressure…

材料科学 · 物理学 2021-06-09 Owen Brazil , Johann P. de Silva , John B. Pethica , Graham L. W. Cross

Living tissues show an extraordinary adaptiveness to strain, which is crucial for their proper biological functioning. The physical origin of this mechanical behaviour has been widely investigated using reconstituted networks of collagen…

软凝聚态物质 · 物理学 2019-02-25 Federica Burla , Justin Tauber , Simone Dussi , Jasper van der Gucht , Gijsje H. Koenderink

A classical problem in elasticity theory involves an inhomogeneity embedded in a material of given stress and shear moduli. The inhomogeneity is a region of arbitrary shape whose stress and shear moduli differ from those of the surrounding…

材料科学 · 物理学 2009-11-13 Joachim Mathiesen , Itamar Procaccia , Ido Regev

Athermal (i.e. zero-temperature) under-constrained systems are typically floppy, but they can be rigidified by the application of external strain, which is theoretically well understood. Here and in the companion paper, we extend this…

软凝聚态物质 · 物理学 2024-12-31 Cheng-Tai Lee , Matthias Merkel

The ``Eshelby problem" refers to the response of a 2-dimensional elastic sheet to cutting away a circle, deforming it into an ellipse, and pushing it back. The resulting response is dominated by the so-called ``Eshelby Kernel" which was…

材料科学 · 物理学 2023-09-26 H. George E. Hentschel , Avanish Kumar , Itamar Procaccia , Saikat Roy

Elastic properties and internal states of isotropic sphere packings are studied by numerical simulations. Several numerical protocols to assemble dense configurations are compared. One, which imitates experiments with lubricated contacts,…

材料科学 · 物理学 2009-01-16 Ivana Agnolin , Jean-Noël Roux

Surface tension at cavity walls can play havoc with the mechanical properties of perforated soft solids when the cavities are filled with a fluid. This study is an investigation of the macroscopic elastic properties of elastomers embedding…

偏微分方程分析 · 数学 2023-09-08 Juan Casado Dìaz , Gilles A. Francfort , Oscar Lopez-Pamies , Maria Giovanna Mora