- Program finansujący:
- Narodowe Centrum Nauki (NCN) (National Science Centre)
- UMO-2017/27/B/ST8/02518 z dnia 2018-08-08
- Okres realizacji:
- 2018-08-08 - 2023-08-07
- Kierownik projektu:
- dr hab. inż. Izabela Lubowiecka
- Członkowie zespołu:
- Wykonawca prof. dr hab. inż. Czesław Kazimierz Szymczak
- Stypendysta/Wykonawca dr inż. Katarzyna Szepietowska
- Stypendysta Daniil Reznikov
- Stypendysta mgr inż. Bartosz Borzeszkowski
- wykonawca Mateusz Troka
- Wykonawca dr hab. inż. Agnieszka Tomaszewska
- Kierownik projektu dr hab. inż. Izabela Lubowiecka
- Doktorant/stypendysta Szymon Kalinowski
- Realizowany w:
- Katedra Mechaniki Budowli
- Instytucje zewnętrzne
biorące udział w projekcie:
- Gdański Uniwersytet Medyczny (Polska)
- Wartość projektu:
- 1 166 680.00 PLN
- Typ zgłoszenia:
- Krajowy Program Badawczy
- Projekt krajowy
- Politechnika Gdańska
Publikacje powiązane z tym projektem
A novel in vivo approach to assess strains of the human abdominal wall under known intraabdominal pressurePublikacja
The study concerns mechanical behaviour of a living human abdominal wall. A better mechanical understanding of a human abdominal wall and recognition of its material properties is required to find mechanically compatible surgical meshes to significantly improve the treatment of ventral hernias. A non-invasive methodology, based on in vivo optical measurements is proposed to determine strains of abdominal wall corresponding to...
Combined numerical and experimental approach to determine numerical model of abdominal scaffoldPublikacja
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,...
Nonlinear material identification of heterogeneous isogeometric Kirchhoff–Love shellsPublikacja
This work presents a Finite Element Model Updating inverse methodology for reconstructing heterogeneous materialdistributions based on an efficient isogeometric shell formulation. It uses nonlinear hyperelastic material models suitable fordescribing incompressible material behavior as well as initially curved shells. The material distribution is discretized by bilinearelements such that the nodal values...
Constitutive Modelling of Knitted Abdominal Implants in Numerical Simulations of Repaired Hernia MechanicsPublikacja
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...
In vivo performance of intraperitoneal onlay mesh after ventral hernia repairPublikacja
Background: Ventral hernia repair needs to be improved since recurrence, postoperative pain and other complications are still reported in many patients. The behavior of implants in vivo is not sufficiently understood to design a surgical mesh mechanically compatible with the human abdominal wall. Methods: This analysis was based on radiological pictures of patients who underwent laparoscopic ventral hernia repair. The pictures...
Material Identification of the Human Abdominal Wall Based On the Isogeometric Shell ModelPublikacja
The human abdominal wall is an object of interest to the research community in the context of ventral hernia repair. Computer models require a priori knowledge of constitutive parameters in order to establish its mechanical response. In this work, the Finite Element Model Updating (FEMU) method is used to identify an heterogeneous shear modulus distribution for a human abdominal wall model, which is based on nonlinear isogeometric...
Modelling of Abdominal Wall Under Uncertainty of Material PropertiesPublikacja
The paper concerns abdominal wall modelling. The accurate prediction and simulation of abdominal wall mechanics are important in the context of optimization of ventral hernia repair. The shell Finite Element model is considered, as the one which can be used in patient-specific approach due to relatively easy geometry generation. However, there are uncertainties in this issue, e.g. related to mechanical properties since the properties...
Stiffness change of abdominal prosthesis Optomesh™ under cyclic loadingPublikacja
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...
Towards Understanding of Mechanics of Hernia Managed by Synthetic Mesh in Laparoscopic Operation: A Single Case StudyPublikacja
In this paper a research towards understanding of mechanics of ventral hernia operated with the use of Physiomesh Open image in new window implant and SecureStrap Open image in new window staples is described. Experimental and numerical studies are conducted for that purpose. Experimental works cover uni-axial tension tests of the implant samples and of the implant-staples-tissue system. Also experiments on implant-staples-tissue...
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