Results 21 to 30 of about 164,491 (286)

Temperature-Induced Internal Stress Influence on Specimens in Indentation Tests

open access: yesMicromachines, 2022
The factors affecting the internal stress of specimens during indentation tests were investigated by finite element analysis (FEA) modelling. This was carried out to gain a qualitative understanding of the test errors introduced by the temperature ...
Shunbo Wang, Xianke Li, Hongwei Zhao
doaj   +1 more source

Twinning and Slip in Zinc by Indentation [PDF]

open access: yes, 1968
Observations of twinning and slip deformation caused by indentation of zinc reveal that extensive slip on the basal and second-order pyramidal systems takes place at loads up to 5 kg.
Blish, R. C., II, Vreeland, T., Jr.
core   +2 more sources

Nanoindentation Of Si Nanostructures: Buckling And Friction At Nanoscales [PDF]

open access: yes, 2009
A nanoindentation system was employed to characterize mechanical properties of silicon nanolines (SiNLs), which were fabricated by an anisotropic wet etching (AWE) process.
Allen, R. A.   +9 more
core   +1 more source

Application of the spherical indenter for determination of the elastic modulus of coatings [PDF]

open access: yesE3S Web of Conferences, 2023
In this work a study of nanoindentation of the surface of epoxypolyester-based powder coatings deposited on steel substrates was carried out. The effect of the test method on the identifiable mechanical properties is investigated. The measurement results
Farmakovskaya A.A.   +2 more
doaj   +1 more source

Mechanical characterization of sol–gel epoxy-silylatedhyperbranched poly(ethyleneimine) coatings by meansof Depth Sensing Indentation methods [PDF]

open access: yes, 2016
A series of hybrid epoxy-silica coatings were prepared from a synthesized hyperbranched poly(ethyleneimine) with ethoxysilyl groups at the chain ends and diglycidylether of bisphenol A in different proportions.
Acebo Gorostiza, Cristina   +3 more
core   +1 more source

Quantifying Mechanical Properties of Automotive Steels with Deep Learning Based Computer Vision Algorithms [PDF]

open access: yes, 2020
This paper demonstrates that the instrumented indentation test (IIT), together with a trained artificial neural network (ANN), has the capability to characterize the mechanical properties of the local parts of a welded steel structure such as a weld ...
Graf, Benjamin   +6 more
core   +1 more source

New Opportunities to Determine the Rate of Wear of Materials at Friction by the Indentation Data

open access: yesУспехи физики металлов, 2020
The article is concerned with the determination of physical plasticity δH (the ratio of the plastic strain to the total strain) and yield stress σS by indentation and the application of these characteristics for analysis of the wear rate W during the ...
Yu. V. Milman, B. M. Mordyuk, K. E. Grinkevych, S. I. Chugunova, I. V. Goncharova, A. I. Lukyanov, D. A. Lesyk
doaj   +1 more source

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

A review of rock macro-indentation: Theories, experiments, simulations, and applications

open access: yesJournal of Rock Mechanics and Geotechnical Engineering
Rock macro-indentation plays a fundamental role in mechanical rock breaking for various rock engineering application, such as drilling, tunneling, cutting, and sawing.
Weiqiang Xie   +4 more
doaj   +1 more source

Thermal-Mechanical Properties of Polyurethane-Clay Shape Memory Polymer Nanocomposites [PDF]

open access: yes, 2010
Shape memory nanocomposites of polyurethane (PU)-clay were fabricated by melt mixing of PU and nano-clay. Based on nano-indentation and microhardness tests, the strength of the nanocomposites increased dramatically as a function of clay content, which is
Chen, Zhen Guo,   +7 more
core   +5 more sources

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