The influence of the cumulated deformation energy in the measurement by the DSI method on the selected mechanical properties of bone tissues

• Autorzy: Makuch A. M. , Skalski K. R. , Pawlikowski M.

Identyfikatory

DOI

10.5277/ABB-00679-2016-04

• Języki publikacji: EN

Abstrakty

EN

Purpose: The goal of the study was to determine the influence of DSI test conditions, i.e. loading/ unloading rates, hold time, the value of the maximum loading force on selected mechanical properties of trabecular bone tissue. Methods: The test samples were resected from a femoral head of a patient qualified for a hip replacement surgery. During the DSI tests hardness (HV, HM, HIT) and elastic modulus (EIT) of trabecular bone tissue were measured using the Micro Hardness Tester (MHT, CSEM). Results: The analysis of the results of measurements and the calculations of total energy, i.e. elastic and inelastic (Wtotal,Welastic,Winelastic) and those of the parameters of hardness and elasticity made it possible to assess the impact of the process parameters (loading velocity, force and hold time) on mechanical properties of bone structures at a microscopic level. Conclusions: The coefficient k dependent on the ratio EIT / HIT and on the stored energy (ΔW = Wtotal- Welastic) is a measure of the material reaction to the loading and the deformation of tissue.

Słowa kluczowe

EN

indentation; elasticity; trabecular bone; DSI method; energy deformation

PL

indentacja; sprężystość; kość beleczkowa; metoda DSI

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2017
• Tom: Vol. 19, no. 2
• Strony: 89--91
• Opis fizyczny: Bibliogr. 30 poz., rys., tab., wykr.

Twórcy

autor

Makuch A. M.

• Institute of Precision Mechanics, Warsaw, Poland

autor

Skalski K. R.

• Institute of Precision Mechanics, Warsaw, Poland

autor

Pawlikowski M.

• Institute of Mechanics and Printing, Warsaw University of Technology, Poland

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).

The study was supported by the Ministry of Science and Higher Education - the research project National Science Centre (NCN) no.2014/15/B/ST7/03244.