Volume: 2, 2023
2nd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland:
ENVIRONMENT – PLANT – ANIMAL – PRODUCT
Abstract number: T042
DOI: https://doi.org/10.24326/ICDSUPL2.T042
Published online: 19 April 2023
ICDSUPL, 2, T042 (2023)
Constructional and technological aspects of bone replacements made of composites
Piotr Podolak1*, Patryk Jakubczak1, Jarosław Bieniaś1, Magda Droździel-Jurkiewicz1, Monika Ostapiuk1, Andrzej Trzciński1,
Mateusz Byczek1
1 Department of Materials Engineering, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618, Lublin, Poland
* Corresponding author: p.podolak@pollub.pl
Abstract
The strict requirements set by medical sector enforce the constant development of materials applicable for tissue replacement. Biocompatibility and similarity of properties to the tissue being replaced is crucial. Nevertheless, there is a space for introducing the additional properties increasing the functionality of considered material. The metal alloys used for manufacturing bone replacements need to be selected with caution, due to possible reactions of alloy components with the organism. Also, due to their high density and atomic number, the diagnostic of repaired location by means of X-ray radiography is challenging. Composite materials offer the overcome of this issue thanks to their partial translucency for X-ray beam. Also, the density which is significantly lower than one of metal alloys may result in the growth of comfort for the patient carrying such implant within the body without the loss of bone replacement strength, and even with the higher one than for metal alloys. The aim of the study was to prepare the finite element analysis model to design the proper shape of hip implant, its manufacturing technology and to verify the response of manufactured prototype under load considered as equivalent of human body action. The research was conducted on carbon fibre reinforced polymer, where the usage of thermoplastic matrix was assumed to fulfil biocompatibility criterion. The set of 18 combinations of characteristic dimensions of the hip implant was analysed in ABAQUS to predict the response of the object. The Tsai-Wu hypothesis was applied to assess, which configuration will be chosen to be manufactured. The prototype was prepared from preimpregnated carbon fibre fabric and cured in the autoclave to ensure the best possible properties and close-to-zero void content. The numerical analysis allowed to select the optimal construction of forthcoming hip implant for assumed work conditions. The verification of prototype showed a high convergence of strain distribution in the studied object. The easiness of geometry customization proved, that finite element analysis is an efficient tool to adapt the potential product for individual patient, both animals and humans, what makes the numerical model reliable and applicable in further development of product. The high quality of product was able to obtain thanks to simultaneous action of temperature, vaccum and outside pressure. This supports the high repeatability of manufactured bone replacements.
How to cite
P. Podolak, P. Jakubczak, J.Bieniaś, M. Droździel-Jurkiewicz, M. Ostapiuk, A. Trzciński, M. Byczek, 2023. Constructional and technological aspects of bone replacements made of composites. In: 2nd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland: Environment – Plant – Animal – Product. https://doi.org/10.24326/ICDSUPL2.T042