Wyniki wyszukiwania dla: knitted prosthesis, hernia, bi-axial test, fe model of prosthesis, constitutive model identification

• Combined numerical and experimental approach to determine numerical model of abdominal scaffold

  Publikacja

  • A. Tomaszewska
  • D. Reznikov

  - COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING - Rok 2022

  A proper junction of the prosthesis and the abdominal wall is important in successful hernia repair. The number of tacks should be balanced to assure appropriate mesh fixation and not to induce post-operative pain. Numerical simulations help to find this balance. The study is aimed at creating a proper numerical model of a knitted surgical mesh subjected to boundary conditions and load occurring in the abdominal cavity. Continuous,...

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• Constitutive Modelling of Knitted Abdominal Implants in Numerical Simulations of Repaired Hernia Mechanics

  Publikacja

  • A. Tomaszewska
  • D. Reznikov
  • C. K. Szymczak
  • I. Lubowiecka

  - Rok 2020

  The paper presents a numerical approach to describe mechanical behavior of anisotropic textile material, which is a selected abdominal prosthesis. Two constitutive nonlinear concepts are compared. In the first one the material is considered composed from two families of threads (dense net model) and in the second one the material is homogeneous but anisotropic (as proposed by Gassel, Ogden, Holzapfel). Parameters of both models...

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• Optymalizacja doboru prawa konstytutywnego membrany o strukturze plecionej

  Publikacja

  • D. Reznikov

  - Rok 2023

  Celem niniejszej dysertacji jest opracowanie zagadnienia optymalizacyjnego pozwalającego dobrać model konstytutywny opisujący mechaniczne zachowanie membrany technicznej. Do analizy wybrano membrany plecione, stosowane w medycynie, tzw. siatki chirurgiczne. W celu wykonania identyfikacji praw konstytutywnych, wykonano dwuosiowe rozciąganie próbek materiałów, otrzymując wskazanie na nieliniowe anizotropowe zachowanie materiałów....

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• Update a simple hypoplastic constitutive model

  Publikacja

  • X. Wang
  • W. Wu
  • J. Tejchman

  - Rok 2008

  W artykule omówiono uproszczona formę hipoplastycznego konstytutywnego prawa materiałowego do opisu zachowania się materiałów granulowanych. Wykonano symulacje testów elementów i porównano wyniki z doświadczeniami.

• Prosthesis

  Czasopisma

  eISSN: 2673-1592

• Stiffness change of abdominal prosthesis Optomesh™ under cyclic loading

  Publikacja

  • A. Tomaszewska
  • S. Szinvai
  • K. Żerdzicki

  - AIP Conference Proceedings - Rok 2019

  Abdominal prostheses are used in humans for abdominal wall strengthening or reconstruction. From the mechanical point of view they are membranes, so their basic mechanical property is tensile stiffness. This property is experimentally identified for a selected implant, OptomeshTM. The obtained results are described herein. Uni-axial simple and cyclic tension tests are a basis for the analysis. Both kinds of tests allowed to distinguish...

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• A palatal prosthesis from archaeological research in the St Francis of Assisi church in Cracow (Poland)

  Publikacja

  • A. E. Spinek
  • M. Kurek
  • K. Demidziuk
  • M. Nowak
  • M. Śliwka-Kaszyńska
  • A. Drążkowska

  - Journal of Archaeological Science-Reports - Rok 2024

  The hard palate is a septum that not only prevents food from entering between the oral and nasal cavity, but also plays an important role during breathing or speech. The presence of cavities within it negatively affects the comfort of life of people with this type of impairment. Hence, in the literature one can find examples of the use of hard palate prostheses to restore the separation between the nasal and oral cavity. During...

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• Spirometry measurement model - the diagnostic purpose support

  Publikacja

  • J. Szklanny
  • W. Słomiński
  • K. Kuziemski

  - Biocybernetics and Biomedical Engineering - Rok 2008

  the paper presents a new model of respiratory mechanism based on the spirometry measurements. the spirometry test assesses the efficiency of the lung ventilation. the respiratory system functioning is based on the ventilation mechanism. thus the quality of the lung depends on the quality of lung ventilation. modelling of the respiratory system supports a diagnostic process. the model parameter estimates are obtained on the basis...

• Reduced model of gyroscopic system

  Publikacja

  • C. Orlikowski
  • R. Hein

  - Rok 2008

  The paper presents the method of model reduction for the system with gyroscopic interactions. Two methods were used to obtain the approximate discrete models of the continuous structure: the modal decomposition method and the rigid finite element method. The first approach is used for this part of a system for which it is easy to formulate orthogonality conditions, meanwhile the second one is used for other part. The method enables...

• JOz Model AiR

  Kursy Online

  • B. Ozimek
  • U. Kamińska
  • I. Mokwa-Tarnowska
  • J. Wielgus
  • E. Wawoczna