Dynamic indentation hardness and rate sensitivity in metals

Article Abstract:

The dynamic indentation hardness of materials was determined through an experimental technique. Unlike traditional static hardness measurements, the inherent rate dependent material response that is germane to high strain processes such as impact and high speed machining can be captured by the dynamic hardness measurements. The results showed that the dynamic Vickers hardness of several commonly used engineering materials was found to be greater than the static Vicker hardness.

Materials, Dynamic testing (Materials), Metals, Hardening (Metalworking)

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Determination of precise indentation flow properties of metallic materials through analyzing contact characteristics beneath indenter

Article Abstract:

Contact characteristics are determined by analysis of the contact morphology from FEA (finite element analysis) using mechanical property data for several steels. Suggestions are given to determine flow properties and they require the determination of the precise contact characteristics such as the contact area or depth between material and indenter to obtain the properties.

Composite materials, Finite element method, Properties

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Determining Brinell hardness from analysis of indentation load-depth curve without optical measurement

Article Abstract:

The study examines obtaining Brinell hardness values without optical observation, using instead quantitative formulas and analyzing the relationship between the indentation depths from the indentation load-depth curve and mechanical properties such as the work-hardening exponent, yield strength and elastic modulus on the basis of finite-element analysis.

Stress analysis (Engineering), Sheet-metal, Sheet metal, Surfaces, Deformation of, Surface deformation, Mechanical properties

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