Ault H K, Hoffman A H
Department of Mechanical Engineering, Worcester Polytechnic Institute, MA 01609.
J Biomech Eng. 1992 Feb;114(1):137-41. doi: 10.1115/1.2895437.
A micromechanical model has been developed to study and predict the mechanical behavior of fibrous soft tissues. The model uses the theorems of least work and minimum potential energy to predict upper and lower bounds on material behavior based on the structure and properties of tissue components. The basic model consists of a composite of crimped collagen fibers embedded in an elastic glycosaminoglycan matrix. Upper and lower bound aggregation rules predict composite material behavior under the assumptions of uniform strain and uniform stress, respectively. Input parameters consist of the component material properties and the geometric configuration of the fibers. The model may be applied to a variety of connective tissue structures and is valuable in giving insight into material behavior and the nature of interactions between tissue components in various structures. Application of the model to rat tail tendon and cat knee joint capsule is described in a companion paper [2].
已开发出一种微观力学模型，用于研究和预测纤维软组织的力学行为。该模型利用最小功定理和最小势能定理，根据组织成分的结构和特性来预测材料行为的上限和下限。基本模型由嵌入弹性糖胺聚糖基质中的卷曲胶原纤维复合材料组成。上限和下限聚集规则分别在均匀应变和均匀应力的假设下预测复合材料的行为。输入参数包括组成材料的特性和纤维的几何构型。该模型可应用于多种结缔组织结构，对于深入了解材料行为以及各种结构中组织成分之间相互作用的本质具有重要价值。配套论文[2]中描述了该模型在大鼠尾腱和猫膝关节囊上的应用。
