Thermomechanics of Solids with Lower-Dimensional Energetics: On the Importance of Surface, Interface and Curve Structures at the Nanoscale. A Unifying Review

Javili A, McBride A, Steinmann P (2012)


Publication Language: English

Publication Type: Journal article

Publication year: 2012

Journal

Publisher: American Society of Mechanical Engineers (ASME)

Book Volume: 65

Pages Range: -

Journal Issue: 1

DOI: 10.1115/1.4023012

Abstract

Surfaces and interfaces can significantly influence the overall response of a solid body. Their behavior is well described by continuum theories that endow the surface and interface with their own energetic structures. Such theories are becoming increasingly important when modeling the response of structures at the nanoscale. The objectives of this review are as follows. The first is to summarize the key contributions in the literature. The second is to unify a select subset of these contributions using a systematic and thermodynamically consistent procedure to derive the governing equations. Contributions from the bulk and the lower-dimensional surface, interface, and curve are accounted for. The governing equations describe the fully nonlinear response (geometric and material). Expressions for the energy and entropy flux vectors, and the admissible constraints on the temperature field, all subject to the restriction of non-negative dissipation, are explored. A particular emphasis is placed on the structure of these relations at the interface. A weak formulation of the governing equations is then presented that serves as the basis for their approximation using the finite element method. Various forms for a Helmholtz energy that describes the fully coupled thermomechanical response of the system are given. They include the contribution from surface tension. The vast majority of the literature on surface elasticity is framed in the infinitesimal deformation setting. The finite deformation stress measures are, thus, linearized and the structure of the resulting stresses discussed. The final objective is to elucidate the theory using a series of numerical example problems.

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How to cite

APA:

Javili, A., McBride, A., & Steinmann, P. (2012). Thermomechanics of Solids with Lower-Dimensional Energetics: On the Importance of Surface, Interface and Curve Structures at the Nanoscale. A Unifying Review. Applied Mechanics Reviews, 65(1), -. https://doi.org/10.1115/1.4023012

MLA:

Javili, Ali, Andrew McBride, and Paul Steinmann. "Thermomechanics of Solids with Lower-Dimensional Energetics: On the Importance of Surface, Interface and Curve Structures at the Nanoscale. A Unifying Review." Applied Mechanics Reviews 65.1 (2012): -.

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