177,180 research outputs found
Edge dislocation inside a lamellar inhomogeneity.
No full textThe elastic field induced by an edge dislocation inside a lamellar inhomogeneity is evaluated, the resulting formulas applying as well to an internal stress source within a lamella in generalized plane stress or plane strain, and the Peach-Koehler force on the dislocation derived. The fatures of the interaction are determined by the mismatch in both the shear moduli and the Poisson's ratios of lamella and matrix. The differences from the case of an edge dislocation in either a free or a clamped strip turn out to be mainly of a quantitative nature and to become relevant when the lamella is up to one order of magnitude harder or softer than the matrix
Interaction between an edge dislocation and a lamellar inhomogeneity with a slipping interface
No full textThe plane elasticity problem of an internal stress source located near a lamellar inhomogeneity is considered. It is assumed that the lamella matrix interface does not transmit tangential displacements or shear tractions (slipping interface). The elastic field is given in terms of the source bulk field and one parameter formed from the elastic constants. The image force on an edge dislocation near the lamella is calculated and discussed. A dislocation stable equilibrium position exists in a do¬main of elastic constants and Burgers vector directions. This result is characteristic of the interaction with a slipping lamellar inhomogeneity having finite thickness
Shape effects in the interaction between an edge dislocation and an elliptical inhomogeneity
No full textEdge dislocation in a lamellar inhomogeneity with a slipping interface.
No full textThe paper develops the solution of the plane elasticity problem in which a source of internal strain is located inside an infinite lamellar inhomogeneity, by assuming that the lamella matrix interface does not transmit tangential displacements or shear tractions. This condition is very likely to occur in lamellar or layered composite materials at elevated temperatures. It is found that the elastic field may be given in terms of the source bulk field plus one parameter formed from four elastic constants. The solution is used to calculate the image force on an edge dislocation within the lamellar inhomogeneity. It is shown that for some combination of material constants the force differs remarkably from that calculated in the perfectly-adhering interface case
sj-docx-1-gpi-10.1177_13684302221094432 – Supplemental material for When “good guys” do bad things: Evaluations of sexual harassment allegations against male allies
No full textSupplemental material, sj-docx-1-gpi-10.1177_13684302221094432 for When “good guys” do bad things: Evaluations of sexual harassment allegations against male allies by Morgana Lizzio-Wilson, Anna Klas and Edward J. R. Clarke in Group Processes & Intergroup Relations</p
- …
