Analysis of changes in bone cement damping factor and its effect on bone load

• Autorzy: Postawa P. , Szarek A.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The article presents the results of simulations and material-related investigations for bone cement used for alloplasty of hip joint. Mechanical properties of bone cements are of key importance for a successful surgery and further use of the joint as well as its behaviour during complex load which appears during patient's walk. Design/methodology/approach: One of the methods of thermal analysis for polymeric materials has been used for investigations. DMTA method is based on the analysis of the signal (reaction) from the deformed material under particular conditions, at the changeable ambient temperature as well as frequency and amplitude of vibrations. DMTA thermograms give information on change in storage modulus E' and the mechanical loss factor tg delta, which is responsible for dissipation of energy during deformation. Findings: During simulation investigations ADINA engineering environment has been used; it enabled, at the assumed boundary and initial conditions, to assess the stress which appears in individual cross-sections of the analysed bone and the implant fixed by means of bone cement. During the analysis the cross-sections have been presented and the values of the stress which appears in individual zones have been determined. Research limitations/implications: Due to high complexity, only the results of simulation software have been used, clinic trials will be possible not before thorough check and analysis of the obtained results. Practical implications: Practical application of the results of the investigations described in this paper will be possible after long and comprehensive clinical trials. Originality/value: Original value of this paper are the results of tests since such an analysis has never been conducted by scientific environment working on this subject.

Słowa kluczowe

EN

biomaterials; mechanical properties; numerical techniques; DMTA method

PL

biomateriały; właściwości mechaniczne; techniki numeryczne; metoda DMTA

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2007
• Tom: Vol. 23, nr 1
• Strony: 35--38
• Opis fizyczny: Bibliogr. 22 poz., rys.

Twórcy

autor

Postawa P.

autor

Szarek A.

• Department of Polymer Processing and Production Management, Czestochowa University of Technology, Al. Armii Krajowej 19 c, 42-200 Czestochowa, Poland,

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