针对人体肌骨软组织小变形的线性双相模型，采用Ｇａｌｅｒｋｉｎ加权残值法导出了求解相应线性问题的混合有限元公式，给出了相应系统方程的迭代求解格式。对软组织的束受压问题的有限元分析，得到与其理论解一致的结果。

The behavior of soft tissues of human musculoskeletal system can be describedwith the biphasic model based on a continuum theory of mktures. This paper. using Galerkin weight-ed residual method.obtains a mixed finite element formulation for the linear biphasic model of smalldeformation. and. in turn. gives out the iterative scheme solving the system equations. The results ofnumerical analysis for the constrained compression problem are consistent with those obtained bytheory. which illustrates the correctnas and feasibility of the derived mixed finite element formula-tion. concludingly. this formulation provides an effective means of numerical analysis for the motfonmechanism of human articulating joints.

R318.01 O242.21