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Iain Finnie

Other affiliations: Royal Dutch Shell, Cairo University
Bio: Iain Finnie is an academic researcher from University of California, Berkeley. The author has contributed to research in topics: Residual stress & Stress (mechanics). The author has an hindex of 26, co-authored 88 publications receiving 4400 citations. Previous affiliations of Iain Finnie include Royal Dutch Shell & Cairo University.


Papers
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Journal ArticleDOI
Iain Finnie1
01 Mar 1960-Wear
TL;DR: In this paper, the authors discussed some aspects of the fluid flow conditions which may lead to erosion and then analyzed the mechanism of material removal for ductile and brittle materials for both types of materials.

1,398 citations

Journal ArticleDOI
01 Jan 1972-Wear
TL;DR: In this paper, the effect of some of these variables may be predicted on simple fundamental grounds, and quantitative predictions may be made for the erosion of ductile metals by hard abrasive grains which strike at grazing angles.

430 citations

Journal ArticleDOI
01 Jul 1995-Wear
TL;DR: In this paper, the authors focus on erosion by abrasive particles in the absence of corrosion and the importance of fluid flow conditions in the solution of practical erosion problems, and present understanding of the mechanisms of material removal in ductile and brittle solids.

393 citations

Journal ArticleDOI
01 Jan 1981-Wear
TL;DR: In this paper, the authors present results for erosion and two-and three-body abrasion using a range of particle sizes, and draw on the grinding and metal-cutting literature, concluding that shallow surface layers exhibit a higher flow stress than that of the bulk material when they are abraded or eroded.

256 citations

Journal ArticleDOI
01 May 1978-Wear
TL;DR: In this article, a more realistic assumption about the location of the forces during particle-surface interaction, values of the exponent n are predicted which are in the range observed experimentally.

243 citations


Cited by
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Journal ArticleDOI
TL;DR: In this paper, a solution for the elastic stress intensity factors at the tip of a slightly curved or kinked two-dimensional crack is presented for the deviation of the crack surface from a straight line and is carried out by perturbation procedures analogous to those of Banichuk [1] and Goldstein and Salganik [2, 3].
Abstract: A solution is presented for the elastic stress intensity factors at the tip of a slightly curved or kinked two-dimensional crack. The solution is accurate to first order in the deviation of the crack surface from a straight line and is carried out by perturbation procedures analogous to those of Banichuk [1] and Goldstein and Salganik [2, 3]. Comparison with exact solutions for circular arc cracks and straight cracks with kinks indicates that the first order solution is numerically accurate for considerable deviations from straightness. The solution is applied to fromulate an equation for the path of crack growth, on the assumption that the path is characterized by pure Mode I conditions (i.e., K II=0) at the advancing tip. This method confirms the dependence of the stability, under Mode I loading, of a straight crack path on the sign of the non-singular stress term, representing tensile stress T acting parallel to the crack, in the Irwin-Williams expansion of the crack tip field. The straight path is shown to be stable under Mode I loading for T 0.

1,681 citations

Journal ArticleDOI
TL;DR: In this paper, the effect of residual stresses on fatigue lifetimes and structural integrity are first summarised, followed by the definition and measurement of residual stress, which are characterised according to the characteristic length scale over which they self-equilibrate.
Abstract: Residual stress is that which remains in a body that is stationary and at equilibrium with its surroundings. It can be very detrimental to the performance of a material or the life of a component. Alternatively, beneficial residual stresses can be introduced deliberately. Residual stresses are more difficult to predict than the in-service stresses on which they superimpose. For this reason, it is important to have reliable methods for the measurement of these stresses and to understand the level of information they can provide. In this paper, which is the first part of a two part overview, the effect of residual stresses on fatigue lifetimes and structural integrity are first summarised, followed by the definition and measurement of residual stresses. Different types of stress are characterised according to the characteristic length scale over which they self-equilibrate. By comparing this length to the gauge volume of each technique, the capability of a range of techniques is assessed. In the sec...

1,317 citations

Book
09 Mar 1989
TL;DR: In this paper, the finite element method was used to analyze the metal forming process and its properties, including plasticity, viscoplasticity, and plane-strain problems.
Abstract: Introduction Metal forming process Analysis and technology in metal forming Plasticity and viscoplasticity Methods of analysis The finite element method (1) The finite element method (2) Plane-strain problems Axisymmetric isothermal forging Steady state processes of extrusion and drawing Sheet metal forming Thermo-viscoplastic analysis Compaction and forging of porous metals Three dimensional problems Preform design in metal forming Solid formulation, comparison of two formulations, and concluding remarks Index.

1,226 citations

Journal ArticleDOI
J.G.A. Bitter1
01 Jan 1963-Wear
TL;DR: In this article, the authors derived an expression for the energy needed to remove a unit volume of material from the body surface and described the plastic-elastic behaviour of the substance.

1,075 citations

Journal ArticleDOI
01 Dec 1984-Wear
TL;DR: The third-body approach highlights the many features which are common to different types of materials in different kinds of rubbing contacts, and suggests that a picture which is globally coherent from a mechanical point of view, in that it obeys as a first step the laws of equilibrium and continuity, can be presented.

866 citations