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Dislocation Dipole in a Strained Nanostructured Layer Buried in an Infinite-Size Matrix
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The equilibrium positions of a dipole of edge dislocations embedded in a nanostructure composed of a strained two-dimensional layer buried in an infinite-size matrix with a rectangular nanowire located at the upper ...
Dynamic Instability of Two Elastic Half-Spaces Sliding With a Rate-and-State Friction Constitutive Law
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The destabilization of the steady-state regime of two semi-infinite half-spaces of different elastic coefficients sliding upon each other has been theoretically investigated when a rate-and-state friction constitutive law ...
Dislocation Formation From a Polycrystal Free-Surface
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The introduction of a dislocation from the free-surface of a grain A of a polycrystal has been investigated from the theoretical point of view. Assuming two disclination dipoles are lying in a high angle boundary separating ...
Formation of Two Edge Dislocations in a Grain Due to Interface Disclination Dipoles
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The formation of a dipole of edge dislocations inside one grain separated from the adjacent grains by two interfaces in which are lying disclination dipoles (one in each interface) has been theoretically investigated from ...
Dislocation in a Strained Layer Embedded in a Semi-Infinite Matrix
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The misfit stress in a thin layer embedded in a semi-infinite matrix has been first determined near the free surface of the structure, using the virtual dislocation formalism. From a Peach–Koehler force analysis, the ...
Dislocation Equilibrium Positions on Either Side of a Grain Boundary
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The equilibrium positions of two edge dislocations located on either side of a grain boundary have been determined when a disclination dipole is lying in the boundary. It is found that a configuration where the dislocations ...
Stiffness Contrast and Separation Influence Wrinkling of Adjacent Layers in a Homogeneous Matrix
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, we study the wrinkling instability of two layers embedded in a homogeneous matrix of infinite size. Using a linear stability analysis, we characterize the wrinkling of the two layers as a function of the ...