Results 251 to 260 of about 2,880,770 (308)

Indentation tests of human articular cartilage

Journal of Biomechanics, 1976
Abstract The short-time shear and bulk moduli of articular cartilage were determined experimentally using torsional shear and uniaxial confined compression tests. These results are compared to the values of shear moduli predicted by using data from indenter tests and the theoretical solution for the identation of a rigid punch pressed into an elastic
R Y, Hori, L F, Mockros
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Interferometric Examination of Hardness Test Indentations

Nature, 1949
BY means of multiple-beam interference methods we are carrying out a systematic examination of the distortions produced on various surfaces by standard diamond hardness indenters, including respectively (1) Vickers pyramid, (2) Rockwell cone, (3) Knoop pyramid, (4) double-cone indenter (devised by P. Grodzinski), using micro- and macro-indenters. Owing
S, TOLANSKY, D G, NICKOLS
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Interactive effect of indenter size and specimen thickness in Hertzian indentation test

Dental Materials, 2010
To investigate the effect of indenter size on the failure mode of amalgam and its interaction with thickness.Dental silver amalgam (Lojic+, SDI) discs, 10 mm diameter, thickness h=0.4-8.0 mm, were stored in air at 37 degrees C for 7 days before testing in 'Hertzian contact', resting freely on a 30% glass fibre-reinforced nylon 6,6 substrate (E: 10GPa ...
Yan, Wang, B W, Darvell
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A continuous indentation test for metals

Acta Metallurgica, 1986
Abstract A penetration test using a continuously increasing load applied on a knife-edge indenter (30° angle) is described. The specific advantage of this method is that the applied load is continuously recorded as a function of the penetration depth.
D.V. Jaramillo, S. Kuriyama, M.A. Meyers
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Extending the use of Indentation Tests

1983
Results are described of experiments performed using indenters of various geometries on a range of WC/Co hardmetals, with hardnesses ranging from 1000 to 1800 HV30.
E. A. Almond, B. Roebuck
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Instrumented Indentation Test

2011
Abstract Instrumented indentation hardness testing significantly expands on the capabilities of traditional hardness testing. It employs high-resolution instrumentation to continuously control and monitor the loads and displacements of an indenter as it is driven into and withdrawn from a material.
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Instrumented Indentation Testing

2000
INSTRUMENTED INDENTATION TESTING (IIT), also known as depth-sensing indentation, continuous-recording indentation, ultra-low-load indentation, and nanoindentation, is a relatively new form of mechanical testing that significantly expands on the capabilities of traditional hardness testing.
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Indentation Testing of Armor Ceramics

2008
Hardness and fracture toughness are important factors typically used for characterizing armor ceramics. Their values depend on composition and microstructure of the ceramics, on the features of testing methods (e.g. on the type of indentation technique and an indentation load) and on the sample preparation procedure.
Eugene Medvedovski, Partho Sarkar
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The theory of indentation and hardness tests

Proceedings of the Physical Society, 1945
A discussion is given of the indentation of ductile materials by cylindrical punches with conical heads. On the experimental side, experiments have been made with work-hardened and with annealed copper, with penetrations up to nine times the diameter of the punch. It is found that the load rises towards a maximum value which is not approached until the
R F Bishop, R Hill, N F Mott
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Indentation hardness testing of rock

International Journal of Rock Mechanics and Mining Sciences, 1998
The indentation testing was used for characterisation of hardness of rock materials. During the test, an indentor under applied load penetrated into the rock surface forming a crater. The testing procedure was developed to be in line with other ISRM Suggested Methods. The results show that standardised indentation testing allows for characterisation of
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