Ön baskı Açık Erişim
Okyar, Ali Fethi;
Büyükkaya, Ömer Faruk;
Karadağ, Cevat Volkan;
Tuna, Bilge Güvenç
{ "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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