Kolupaev, VladimirVladimirKolupaevNierbauer, AxelAxelNierbauer2023-03-092023-03-092022-02-02https://publica.fraunhofer.de/handle/publica/43751510.26717/BJSTR.2022.41.006620Background: The presented study is focused on the multiaxial mechanical behaviour of soft biological tissues. The properties of such tissues are comparable with properties of elastomers and can be modelled as hyperelastic materials. Methods: The bulge test is the simplest way to realize biaxial tensile loadings on the soft tissues Results: Optimal results are obtained for the test setup with an orifice of the Ø40 mm diameter. In addition, the polynomial RIVLIN equation is modified for clear material description. Conclusion: Our method supplies data for reliable modelling of mechanical behaviour with the strain energy function. These test results allow reliable modelling of hyperelastic properties. The RIVLIN equation with suggested modification can be fitted to the measured data at uniaxial tensile loading, biaxial tensile loading, and planar tensile loading so that the impact of each term in the equation is clear.enHyperelastic MaterialMultiaxial PropertiesBiaxial LoadingBubble Inflation3D EvaluationDDC::600 Technik, Medizin, angewandte Wissenschaftenjournal article