Results 11 to 20 of about 204,727 (297)

Effective indenter radius and frame compliance in instrumented indentation testing using a spherical indenter [PDF]

open access: yesJournal of Materials Research, 2009
We introduce a novel method to correct for imperfect indenter geometry and frame compliance in instrumented indentation testing with a spherical indenter.
Kang, Ingeun   +3 more
core   +6 more sources

Indentation of glasses [PDF]

open access: yesProgress in Materials Science, 2021
Abstract Indentation, owing to its ability to induce permanent deformation in a controlled manner even in highly brittle materials that are otherwise not amenable to critical mechanical testing experiments, is widely used for studying the mechanical behavior of amorphous solids.
T. Rouxel, J. Jang, U. Ramamurty
semanticscholar   +3 more sources

Indentation Plastometry of Welds [PDF]

open access: yesAdvanced Engineering Materials, 2022
This investigation concerns the application of the profilometry‐based indentation plastometry (PIP) methodology to obtain stress–strain relationships for material in the vicinity of fusion welds. These are produced by The Welding Institute (TWI), using submerged arc welding to join pairs of thick steel plates. The width of the welds varies from about 5 
Gu, W   +9 more
openaire   +4 more sources

Comparison of the Indentation Processes Using the Single Indenter and Indenter Array: A Molecular Dynamics Study

open access: yesNanoscale Research Letters, 2022
AbstractFabrication of periodic nanostructures has drawn increasing interest owing to their applications of such functional structures in optics, biomedical and power generation devices. Nano-indentation technique has been proven as a method to fabricate periodic nanostructures.
Yanquan Geng   +5 more
openaire   +3 more sources

A universal formulation for indentation whatever the indenter geometry [PDF]

open access: yesMechanics of Materials, 2015
We propose in this paper a geometrical equivalence between a shape described by a power law and a conical geometry. A theoretical and numerical study has allowed us to generalize an equivalence between the conical geometrical parameter tanβ and the spherical or power law shape geometrical parameter ac/R. Moreover, in order to superpose indentation data
Hernot, Xavier   +3 more
openaire   +3 more sources

Crystal Indentation Hardness [PDF]

open access: yesCrystals, 2017
There is expanded interest in the long-standing subject of the hardness properties of materials. A major part of such interest is due to the advent of nanoindentation hardness testing systems which have made available orders of magnitude increases in load and displacement measuring capabilities achieved in a continuously recorded test procedure.
Ronald Armstrong   +2 more
openaire   +5 more sources

Mechanical analysis of indentation experiments with a conical indenter [PDF]

open access: yesPhilosophical Magazine, 2006
The finite element method was used to study the pyramidal indentation of elastic perfectly plastic (EPP) solids. The ratio of the effective elastic modulus, E*, to the flow stress, σ0, ranged from 2.79 (quasielastic solid) to 2790 (quasirigid perfectly plastic (quasi-RPP) solid).
Felder, Eric   +1 more
openaire   +3 more sources

Indentation of ellipsoidal and cylindrical elastic shells [PDF]

open access: yes, 2012
Thin shells are found in nature at scales ranging from viruses to hens’ eggs; the stiffness of such shells is essential for their function. We present the results of numerical simulations and theoretical analyses for the indentation of ellipsoidal and ...
Ajdari, A.   +3 more
core   +3 more sources

On the indentation size effect in spherical indentation

open access: yesPhilosophical Magazine, 2006
Size effects in plasticity at small length scales have been widely reported in a variety of loading situations. The hardness size effect has often been cited as an archetypal example. The indentation size effect was clearly demonstrated by Lim and Chaudhri (1999) in spherical indentation experiments on Copper and subsequently in experiments on Iridium ...
Nigel M. Jennett   +2 more
openaire   +3 more sources

Failure modes of composite sandwich beams [PDF]

open access: yesTheoretical and Applied Mechanics, 2008
A thorough investigation of failure behavior of composite sandwich beams under three-and four-point bending was undertaken. The beams were made of unidirectional carbon/epoxy facings and a PVC closed-cell foam core.
Gdoutos E., Daniel I.M.
doaj   +1 more source

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