摘要
本文将皮肤模拟为一各向同性的二相多孔粘弹性体。利用数学方法求解了皮肤层在钢印挤压作用下的蠕变与应力松驰问题，使用数值方法求解了第二类Ｆｒｅｄｈｏｌｍ积分方程和拉氏逆变换。计算所得的平衡状态时的位移响应与单相弹性解的位移结果吻合较好。本文方法对通过刚性挤压试验来确定皮肤层的物理常数具有重要的意义。
Integral technique was used to solve the creep and stressrelaxation of a skin layer modeled as a linear biphasic poroelastic material. The surface stress and displacement boundary conditions led to a Fredholm integration equation of the second kind and was solved numerically. The inverse Laplace transform was obtained numerically through the IMSL subroutine DINLAP. The calculated equilibrium displacements showed an excellent agreement with those obtained by the elastic solutions. The material coefficients could be obtained analytically through indentation test and by solving the inverse creep and inverse stress relaxation problems.
出处
《中国生物医学工程学报》
CAS
CSCD
北大核心
1997年第1期127-127,共1页
Chinese Journal of Biomedical Engineering
