Results 11 to 20 of about 2,129,467 (285)

Indentation Depth Dependent Mechanical Behavior in Polymers [PDF]

open access: yesAdvances in Condensed Matter Physics, 2015
Various experimental studies have revealed size dependent deformation of materials at micro and submicron length scales. Among different experimental methods, nanoindentation testing is arguably the most commonly applied method of studying size effect in
Farid Alisafaei, Chung-Souk Han
doaj   +3 more sources

SMALL DEPTH INDENTATION OF UHMW (POLYETHYLENE)

open access: yesTransactions of the Canadian Society for Mechanical Engineering, 1995
Indentation tests based on the local deformation of UHMW-Polyethylene plastic material by harder indenters were conducted using a designed apparatus which detects precisely the first contact between the tip of the indenter and the sample. The same rig was used to perform creep and recovery tests on this material to measure the yield strength and Young’
Habib Benabdallah
openaire   +2 more sources

The Analysis of Depth-Sensing Indentation Data

open access: yesMRS Proceedings, 1993
ABSTRACTCommon methods for analyzing depth-sensing indentation data are briefly reviewed and an overview of the principal factors limiting the accuracy and precision of results obtained using these methods is presented. The largest deviations from the elastic contact models used to interpret depth-sensing indentation data arise from time-dependent ...
Shefford P. Baker
openaire   +2 more sources

Effects of Surface Stress on the Load-Depth Curves of Depth-Sensing Indentation

open access: yesMRS Proceedings, 2004
ABSTRACTBased on the effects of residual surface stress on the unloading curves of indentation load-depth responses, an experimental scheme for determination of the residual stress by depth-sensing indentation is proposed. From the point that the elastic unloading portion of the load-depth curves can be expected to be unaffected by the residual ...
Q. Wang, K. Ozaki
openaire   +2 more sources

Effect of Indenter Load on Vickers Microhardness and Indentation Depth of One Resin Composite. [PDF]

open access: yesMaterials (Basel)
The load and size of the indentation may affect the hardness value. This study investigated the effect of the indentation size on the microhardness of one resin-based composite (RBC). Metal molds 4 mm deep and 12 mm in diameter were filled with Tetric EvoCeram Bulk Fill (Ivoclar) and light-cured for 10 s using a broad-spectrum LED curing light.
Price RB, Sullivan B.
europepmc   +3 more sources

Analysis of depth-sensing indentation tests with a Knoop indenter [PDF]

open access: yesJournal of Materials Research, 2001
The present work shows how data obtained in a depth-sensing indentation test using a Knoop indenter may be analyzed to provide elastic modulus and hardness of the specimen material. The method takes into account the elastic recovery along the direction of the short axis of the residual impression as the indenter is removed.
L. Riester   +2 more
openaire   +3 more sources

The neural signal for skin indentation depth. I. Changing indentations [PDF]

open access: yesThe Journal of Neuroscience, 1983
Psychophysical tests on human subjects showed that judgments of skin indentation depth made when the fingertip was indented at rates from 0.2 to 16 mm/sec were quite insensitive to changes in indentation velocity. Similar results were obtained on the forearm at indentation velocities of 0.4 to 16 mm/sec.
P R, Burgess   +5 more
openaire   +2 more sources

The neural signal for skin indentation depth. II. Steady indentations [PDF]

open access: yesThe Journal of Neuroscience, 1983
The glabrous skin of the monkey's hand was stimulated with a waveform that indented the skin at a rate of 0.4 mm/sec, held the skin steadily or nearly steadily indented for 12 sec or longer, and then retracted back to the starting position. Recordings were made of activity in single afferent fibers in response to these stimuli.
J, Mei   +5 more
openaire   +2 more sources

An investigation of nanoindentation tests on the single crystal copper thin film via an AFM and MD simulation [PDF]

open access: yes, 2007
Nanoindentation tests performed in an atomic force microscope have been utilized to directly measure the mechanical properties of single crystal metal thin films fabricated by the vacuum vapor deposition technique. Nanoindentation tests were conducted at
Liang, Y, Cheng, K, Huo, D
core   +4 more sources

Nanoindentation as a method to interrogate the mechanical properties of polymer coatings [PDF]

open access: yes, 2011
PhDPolymer coatings are widely used in many industrial applications such as coatings on car bodies and refrigerators, and as varnishes on floor coverings and wood.
Ekers, Tanya Wilhelmina
core   +3 more sources

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