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Book ChapterDOI

Energy Relations and the Energy-Momentum Tensor in Continuum Mechanics

TLDR
In this paper, the authors define a force acting on each element of a mobile interface (a phase boundary or martensitic interface, for example) and define the crack extension force of fracture mechanics.
Abstract
The force on a dislocation or point defect, as understood in solid-state physics, and the crack extension force of fracture mechanics are examples of quantities which measure the rate at which the total energy of a physical system varies as some kind of departure from uniformity within it changes its configuration One may define similarly a force acting on each element of a mobile interface (a phase boundary or martensitic interface, for example)

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Thin Film Materials: Stress, Defect Formation and Surface Evolution

TL;DR: The role of stress in mass transport is discussed in this article, where the authors consider anisotropic and patterned films, buckling, bulging, peeling and fracture.
Journal ArticleDOI

Mechanical properties of nanostructure of biological materials

TL;DR: In this paper, the authors investigated the mechanics of protein-mineral nanocomposite structure and found that large aspect ratios and a staggered alignment of mineral platelets are the key factors contributing to the large stiffness of biomaterials.
Journal ArticleDOI

Variational time integrators

TL;DR: In this paper, the authors review and further develop the subject of variational integration algorithms as it applies to mechanical systems of engineering interest, and present selected numerical examples which demonstrate the excellent accuracy, conservation and convergence characteristics of AVIs.
Journal ArticleDOI

Partition of unity enrichment for bimaterial interface cracks

TL;DR: Partition of unity enrichment techniques are developed for bimaterial interface cracks in this article, where a discontinuous function and the two-dimensional near-tip asymptotic displacement functions are added to the finite element approximation using the framework of partition of unity.
Journal ArticleDOI

An interaction energy integral method for computation of mixed-mode stress intensity factors along non-planar crack fronts in three dimensions

TL;DR: In this paper, a new interaction energy integral method for extracting mixed-mode stress intensity factors along the fronts of non-planar, three-dimensional cracks is described, where interaction energy contour integrals are defined and expressed in domain form.
References
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Theory of elasticity

TL;DR: The theory of the slipline field is used in this article to solve the problem of stable and non-stressed problems in plane strains in a plane-strain scenario.
Journal ArticleDOI

A Path Independent Integral and the Approximate Analysis of Strain Concentration by Notches and Cracks

TL;DR: In this paper, an integral is exhibited which has the same value for all paths surrounding a class of notches in two-dimensional deformation fields of linear or non-linear elastic materials.
Journal ArticleDOI

Yielding of steel sheets containing slits

TL;DR: In this article, a relation between extent of plastic yielding and external load applied was investigated, and panels containing internal and edge slits were loaded in tension and lengths of plastic zones were measured.