Elastic constitutive laws for cow teat tissue undergoing finite deformations

Article type: Research Article

Authors: Gates, R.S.^a | Scott, N.R.^a | Pitt, R.E.^a | Bartel, D.L.^b

Affiliations: [a] Department of Agricultural Engineering, Cornell University, Ithaca, NY 14853 | [b] Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853

Note: [] Accepted by: Editor Y.C.B. Fung

Abstract: Five constitutive laws are investigated to model the effect of machine milking. A nonlinear least squares procedure is employed to estimate material constants from in vivo teat inflation data. An exponential form is found to be statistically adequate as a constitutive law, and is used to determine the mechanical stresses in teat tissue during finite deformations.

Keywords: biomechanics, soft biological tissue, finite deformation, machine milking

DOI: 10.3233/BIR-1985-22604

Journal: Biorheology, vol. 22, no. 6, pp. 495-508, 1985