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Identification of passive constitutive arterial tissue parameters from pressure myography based on inverse hyperelasticity

Okyar, Ali Fethi; Büyükkaya, Ömer Faruk; Karadağ, Cevat Volkan; Tuna, Bilge Güvenç


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{
  "DOI": "10.2139/ssrn.4607650", 
  "abstract": "<p>Changes in the mechanical properties of arteries due to growth, remodeling, or aging are related with cardiovascular diseases. These changes can quantitatively be assessed if a suitable set of biomaterial constitutive parameters could be fitted onto the in vitro response from pressure myography. In Simon et al (1970), a pressure-diameter dataset reflecting the internal pressurization stage was provided. However, this data did not include the excised state. We developed an analytical continuum-based computational procedure to pull the current state back to the excised (reference) state. Using this procedure the data was fitted to a simple exponential model, and a 56% decrease in the shear modulus and a 19% decrease in the exponential constant were observed. Similar observations were made for the hyperelastic fibre-reinforced continuum model by Holzapfel et al (2000). In conclusion, the parameter identification process may be hindered as a result of an incomplete or partial dataset. Inverse deformation mapping may be used to<br>\nproduce the missing data.</p>", 
  "author": [
    {
      "family": "Okyar", 
      "given": " Ali Fethi"
    }, 
    {
      "family": "B\u00fcy\u00fckkaya", 
      "given": " \u00d6mer Faruk"
    }, 
    {
      "family": "Karada\u011f", 
      "given": " Cevat Volkan"
    }, 
    {
      "family": "Tuna", 
      "given": " Bilge G\u00fcven\u00e7"
    }
  ], 
  "id": "263268", 
  "issued": {
    "date-parts": [
      [
        2023, 
        10, 
        24
      ]
    ]
  }, 
  "language": "eng", 
  "title": "Identification of passive constitutive arterial tissue parameters from pressure myography based on inverse hyperelasticity", 
  "type": "article", 
  "version": "0.8"
}
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