| Abstrakt: |
The construction of the maximum dissipation evolution equation requires only the thermodynamic relaxation modulus, k, in addition to the long-term quasi-static energy density function. As indicated in the discussion of viscoelastic and viscoplastic materials (Chapters 4 and 5), the thermodynamic relaxation modulus depends on the material microstructure and controls the relaxation speed. Therefore the thermodynamic relaxation modulus is the primary tool for multi-scale modeling of spatial scales in the material response. Such scales include the molecular and substructures in the body. For example, such substructures within the normally well-hydrated artery wall include elastin lamellae, collagen fibers, smooth muscle bundles, and the interface between the blood and artery wall. The mechanical response of soft biological tissue is influenced by intermolecular forces between water and biopolymers. The maximum dissipation construction is applied to represent the viscoelastic response of the arterial elastin-water system. [ABSTRACT FROM AUTHOR] |
