Original scientific paper

https://doi.org/10.17559/TV-20170420121538

Evaluation of the Locking Compression Plates Stress-Strain Fields

Uroš Tatić ; Innovation Center of Faculty of Mechanical Engineering, Kraljice Marije 16, 11000 Belgrade, Serbia
Katarina Čolić ; Innovation Center of Faculty of Mechanical Engineering, Kraljice Marije 16, 11000 Belgrade, Serbia
Aleksandar Sedmak orcid.org/0000-0002-5438-1895 ; Faculty of Mechanical Engineering, Kraljice Marije 16, 11000 Belgrade, Serbia
Žarko Mišković ; Faculty of Mechanical Engineering, Kraljice Marije 16, 11000 Belgrade, Serbia
Ana Petrović orcid.org/0000-0002-5996-1485 ; Faculty of Mechanical Engineering, Kraljice Marije 16, 11000 Belgrade, Serbia

Abstract

Locking Compression Plates (LCP) have found application in the orthopaedic healing process in modern medicine. Their design is specifically modified depending on the bone and the loading the specific bone is subjected to. Dimensions of LCP, as well as mechanical characteristics, provide greater structural resistance than the bone itself; in practice, however, continuous application and cyclic loading can lead to fails and fractures. Defining of the testing approaches and procedures used for the evaluation of the stress and location of geometrical areas with potential risk of the stress concentration represent the aim of this investigation. Results obtained in this paper show that combined use of modern experimental methods (DIC) and numerical simulations on the modified and simplified LCP geometry, can be used to locate stress and strain fields, as well as areas with stress concentration that can result in the appearance of cracks during cyclic loading.

Keywords

biomaterial; digital image correlation; FEM; fracture; Locking-Compression-Plates; stress strain evaluation; structural integrity

Hrčak ID:

193603

URI

https://hrcak.srce.hr/193603

Publication date:

10.2.2018.

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