Казанский (Приволжский) федеральный университет, КФУ
Форма представленияСтатьи в зарубежных журналах и сборниках
Год публикации2021
  • Балтин Максим Эдуардович, автор
  • Балтина Татьяна Валерьевна, автор
  • Большаков Павел Владиславович, автор
  • Герасимов Олег Владимирович, автор
  • Исламов Рустем Робертович, автор
  • Саченков Оскар Александрович, автор
  • Стаценко Евгений Олегович, автор
  • Фадеев Филип Олегович, автор
  • Федянин Артур Олегович, автор
  • Харин Никита Вячеславович, автор
  • Большаков Павел Владиславович, автор
  • Герасимов Олег Владимирович, автор
  • Харин Никита Вячеславович, автор
  • Библиографическое описание на языке оригинала Gerasimov O.V, Kharin N.V, Fedyanin A.O, Bolshakov P. V., Baltin M.E., Statsenko E.O., Fadeev F.O., Islamov R.R., Baltina T.V., Sachenkov O.A. Bone Stress-Strain State Evaluation Using CT Based FEM//Frontiers in Mechanical Engineering. - 2021. - Vol.7, - Art. № 688474. - DOI: 10.3389/fmech.2021.688474
    Аннотация Nowadays, the use of a digital prototype in numerical modeling is one of the main approaches to calculating the elements of an inhomogeneous structure under the influence of external forces. The article considers a finite element analysis method based on computed tomography data. The calculations used a three-dimensional isoparametric finite element of a continuous medium developed by the authors with a linear approximation, based on weighted integration of the local stiffness matrix. The purpose of this study is to describe a general algorithm for constructing a numerical model that allows static calculation of objects with a porous structure according to its computed tomography data. Numerical modeling was carried out using kinematic boundary conditions. To evaluate the results obtained, computational and postprocessor grids were introduced. The qualitative assessment of the modeling data was based on the normalized error. Three-point bending of bone specimens of the pig forelimbs was considered as a model problem. The numerical simulation results were compared with the data obtained from a physical experiment. The relative error ranged from 3 to 15%, and the crack location, determined by the physical experiment, corresponded to the area where the ultimate strength values were exceeded, determined by numerical modeling. The results obtained reflect not only the effectiveness of the proposed approach, but also the agreement with experimental data. This method turned out to be relatively non-resource-intensive and time-efficient.
    Ключевые слова Bone, Stress-Strain State, FEM
    Название журнала Frontiers in Mechanical Engineering
    URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-85109092869&doi=10.3389%2ffmech.2021.688474&partnerID=40&md5=64bf17e0079c39a28778c58deed8391a
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