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Showing 1 to 12 of 12 for “"Instrumented Indentation"”.
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Computational and experimental study of instrumented indentation
… is systematically investigated by recourse to instrumented micro- and/or nanoindentation. This technique is capable of extracting mechanical properties accurately down to nanometers, via rigorous interpretation of indentation response. Such interpretation requires fundamental understandings of …
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Extraction of Superelastic Parameter Values from Instrumented Indentation Data
… of parameter values in a constitutive law) via indentation testing. Specimens can then be small, require minimal preparation and be obtainable from components in service. Interrogation of small volumes also allows mapping of properties over a surface. On the other hand, the tested volume must be …
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A Methodology For Instrumented Indentation Studies Of Deformation In Bulk Metallic Glasses
… tensile or compression testing problematic. Instrumented indentation is ideally suited for this purpose because the testing requires only small sampling volumes and can probe multiaxial deformation characteristics at various length scales. In this technique, conducted generally on a …
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Elastic-anisotropic properties of the porcine superflexor tendon measured by instrumented indentation
Measurements of soft tissue anisotropy using instrumented indentation are of interest because of the potential for indentation-based clinical diagnostics. Shortage of previous research relating to instrumented indentation of soft tissue in the kPa range, such as tendon, motivated a protocol …
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Investigation of indentation derived creep response using constant load and constant strain rate methods
… for small scale materials. Accordingly, instrumented indentation techniques are frequently employed. This study concerns the employment of instrumented indentation to characterize the power-law creep response of metallic materials. Indentation derived creep response using constant …
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Extraction of Inelastic Mecahnical Properties of Metals from Indentation Data
… finite element method (FEM) modelling of the indentation procedure, aimed at obtaining well defined mechanical properties of metals solely from experimental indentation data. Relatively large (1 2 mm radius) spherical indenters have been used which offer a number of advantages. The material …
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Indentation of plastically graded materials
… strain hardening exponent on frictionless normal indentation. To date, however, systematic studies of plasticity gradient effects on indentation response have not been completed. A comprehensive parametric study of the mechanics of indentation of plastically graded materials is completed in this …
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Instrumented Nanoindentation Studies Of Deformation In Shape Memory Alloys
… history and the composition of the alloy. Instrumented indentation, inherently a mechanical characterization technique for small sampling volumes, offers a cost effective means of empirically testing SMAs in the form of centimeter scaled buttons prior to large-scale production. …
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Invariant mechanical properties of calcium-silicate-hydrates (C-H-S) in cement-based materials : instrumented nanoindentation and microporomechanical modeling
… recent advances in experimentation namely instrumented indentation, and micromechanical modeling namely homogenization techniques, in an attempt to quantify the mutli-phase, multi-scale heterogeneity observed in all cement-based materials. We report a systematic framework for mechanically …
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Methods to improve indentation results on soft materials and anisotropic biological tissues
… are key to the functionality of such tissues. Indentation has become a leading technique for characterizing the localized mechanical properties of materials, and it is an increasingly popular technique for studying biological materials. This thesis investigates difficulties and challenges …
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Mechanical response of polymer matrix composites using indentation stress-strain protocols
… capabilities. To address this need, the use of instrumented indentation on a lengthscale appropriate to the material system presents itself as a viable solution. Indentation is uniquely suited to such an implementation due to its inherent ability to conform to the lengthscale of testing needed …
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Innovative Geometrical and Mechanical characterization of metallic components
L'abstract è presente nell'allegato / the abstract is in the attachment