Vaishnav R N, Vossoughi J
J Biomech Eng. 1984 May;106(2):105-11. doi: 10.1115/1.3138465.
The pulsatile deformations of the large arteries can be viewed as small time-varying deformations superposed on large deformations. This motivates the study of the incremental deformations of the vascular tissue. Unfortunately, because of the variety of possible choices of definitions of stresses and strains, the choice of the characterizing incremental moduli is not unique, which has led to much ambiguity and confusion in the literature. This communication systematically presents some of the options available for characterization of orthotropic incremental deformations of the vascular tissue, and provides explicit formulas for interconversions of incremental elastic moduli for uniaxial tests on strips of incompressible tissue. Relative merits of various choices are discussed.
大动脉的脉动变形可视为叠加在大变形上的小的随时间变化的变形。这激发了对血管组织增量变形的研究。不幸的是，由于应力和应变定义的多种可能选择，表征增量模量的选择并非唯一，这在文献中导致了很多模糊性和混淆。本文系统地介绍了一些可用于表征血管组织正交各向异性增量变形的选项，并给出了不可压缩组织条带单轴试验中增量弹性模量相互转换的显式公式。讨论了各种选择的相对优点。
