Experimental and theoretical investigation of aortic wall tissue in tensile tests

被引:1
|
作者
Petuchova, Aleksandra [1 ]
Maknickas, Algirdas [1 ,2 ]
Kostenko, Ernest [1 ,3 ]
Stonkus, Rimantas [4 ]
机构
[1] Vilnius Gediminas Tech Univ, Fac Mech, Dept Biomech Engn, Plytines Str 25, Vilnius, Lithuania
[2] Vilnius Gediminas Tech Univ, Inst Mech, Fac Mech, Lab Numer Simulat, Vilnius, Lithuania
[3] Vilnius Coll, Fac Agrotechnol, Vet Dept, Vilnius, Lithuania
[4] Vilnius Gediminas Tech Univ, Dept Mech Robot & Digital Mfg, Vilnius, Lithuania
关键词
Aortic wall; mechanical properties; stress-strain curve; tensile test; MECHANICAL-PROPERTIES; ANIMAL-MODELS; ANEURYSMS; REPAIR; RISK;
D O I
10.3233/THC-235007
中图分类号
R19 [保健组织与事业(卫生事业管理)];
学科分类号
摘要
BACKGROUND: Understanding the mechanical properties of aortic tissue is essential for developing numerical computation tools and assessing the risk of aortic aneurysm fractures. Tensile tests using aortic wall specimens allow for the determination of stress and strain depending on the location and direction of the sample. OBJECTIVE: The aim of this study was to perform a mechanical tensile test using canine aorta samples and create a numerical model of aortic tissue tension from the processed data. METHODS: Dogbone-shaped samples were dissected from canine aortic segments. The initial measurements were made at zero tension and the tensile tests were conducted at 10 mm/min until rupture. Force and stretch data were used to obtain engineering and true stress-strain curves. The true stress-strain curves were taken until the maximum strength was obtained, after which they were smoothed and fitted using a logistic function with three coefficients. These curves were then used as material mechanical properties for a numerical model of the aortic tissue tension. A simplified rectangle form was used to mimic the middle of the dogbone-shaped portion of the tissue specimen. Experimental displacement data were collected for the boundary conditions of the finite element 3D model. RESULTS: The experimental data processing revealed that the logistic function described the nonlinear behaviour of the aorta soft tissue with an accuracy of 95% from the start of the tension to the media layer rupture. By applying numerical simulations, we obtained a correspondence of the load curve with an RMSE = 0.069 for the theoretical and experimental external tension data. CONCLUSION: The numerical investigation confirmed that the non-linear soft tissue was validated by applying a logistic function approach to the mechanical properties of the aortic wall.
引用
收藏
页码:2411 / 2421
页数:11
相关论文
共 50 条
  • [31] Experimental investigation and theoretical modelling of the nonlinear acoustical behaviour of a liver tissue and comparison with a tissue mimicking hydrogel
    Sergio Casciaro
    Christian Demitri
    Francesco Conversano
    Ernesto Casciaro
    Alessandro Distante
    Journal of Materials Science: Materials in Medicine, 2008, 19 : 899 - 906
  • [32] Experimental investigation and theoretical modelling of the nonlinear acoustical behaviour of a liver tissue and comparison with a tissue mimicking hydrogel
    Casciaro, Sergio
    Demitri, Christian
    Conversano, Francesco
    Casciaro, Ernesto
    Distante, Alessandro
    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE, 2008, 19 (02) : 899 - 906
  • [33] An Experimental Investigation of Tensile Fracturing Behavior of Natural and Artificial Rocks in Static and Dynamic Brazilian Disc Tests
    Zhou, Tao
    Zhu, Jianbo
    ISRM EUROPEAN ROCK MECHANICS SYMPOSIUM EUROCK 2017, 2017, 191 : 992 - 998
  • [34] Experimental and numerical investigation of ductile fracture using GTN damage model on in-situ tensile tests
    Gholipour, H.
    Biglari, F. R.
    Nikbin, K.
    INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2019, 164
  • [35] Experimental and Numerical Investigation of PA66 Fabrics Coated/Uncoated PVC by Biaxial Tensile Tests
    Wang, Changsheng
    Cao, Xifan
    Shen, Hongbei
    FIBERS AND POLYMERS, 2021, 22 (08) : 2194 - 2205
  • [36] Experimental and Numerical Investigation of PA66 Fabrics Coated/Uncoated PVC by Biaxial Tensile Tests
    Changsheng Wang
    Xifan Cao
    Hongbei Shen
    Fibers and Polymers, 2021, 22 : 2194 - 2205
  • [37] Investigation on thermoformability of PLA by rheological and hot tensile tests
    Garofalo, Emilia
    Iannaccone, Giovanni
    Scarfato, Paola
    Di Maio, Luciano
    Incarnato, Loredana
    6TH INTERNATIONAL CONFERENCE ON TIMES OF POLYMERS (TOP) AND COMPOSITES, 2012, 1459 : 274 - 276
  • [38] An experimental and theoretical investigation into the effect of braiding angle and combination on a tensile modulus of the tubular biaxial hybrid braids
    Ghamkhar, Ghazal
    Johari, Majid Safar
    Hosseini Toudeshky, Hossein
    JOURNAL OF INDUSTRIAL TEXTILES, 2022, 51 (1_SUPPL) : 822S - 841S
  • [39] Experimental investigation and theoretical prediction of tensile properties of Delonix regia seed particle reinforced polymeric composites
    Agunsoye J.O.
    Bello S.A.
    Adetola L.O.
    Journal of King Saud University - Engineering Sciences, 2019, 31 (01): : 70 - 77
  • [40] Characterization of aortic tissue cutting process: Experimental investigation using porcine ascending aorta
    Hu, Zhongwei
    Sun, Wei
    Zhang, Bi
    JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, 2013, 18 : 81 - 89