The nonlinear mechanical behavior of fetal dura mater was tested experimentally and compared to two published nonlinear material strain energy functions, the Mooney-Rivlin and the Skalak, Tozeren, Zarda, and Chien (STZC). The STZC constitutive relations best fit the behavior of the dura mater and were used to describe quantitatively its stiffness. Runge-Kutta numerical procedures were used to fit the theoretical data to the experimental results. The material’s stiffness was positively correlated with fetal weight (r = 0.67, p<0.05). These results are discussed and directions for future research indicated.
Mechanical Behavior of Fetal Dura Mater Under Large Axisymmetric Inflation
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Kriewall, T. J., Akkas, N., Bylski, D. I., Melvin, J. W., and Work, B. A., Jr. (February 1, 1983). "Mechanical Behavior of Fetal Dura Mater Under Large Axisymmetric Inflation." ASME. J Biomech Eng. February 1983; 105(1): 71–76. https://doi.org/10.1115/1.3138388
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