DETERMINATION OF A CONSTITUTIVE RELATION FOR PASSIVE MYOCARDIUM .2. PARAMETER-ESTIMATION

被引:147
作者
HUMPHREY, JD [1 ]
STRUMPF, RK [1 ]
YIN, FCP [1 ]
机构
[1] JOHNS HOPKINS MED INST, DEPT MED, BALTIMORE, MD 21205 USA
来源
JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME | 1990年 / 112卷 / 03期
关键词
D O I
10.1115/1.2891194
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
In the first paper ofthisseries, we proposed a new transversely isotropic pseudostrainenergy function W for describing the biomechanical behavior of excised noncontracting myocardium. The specific functional form of W was inferred directly from biaxial data to be a polynomial function of two coordinate invariant measures of the finite deformation and five material parameters. In this paper, best-fit values of the material parameters are determined from biaxial data using a nonlinear leastsquares regression. These values of the parameters are shown to be well-determined, and the final constitutive relation is shown to have good predictive capabilities. Since the proposed constitutive relation describes much broader classes of in-vitro biaxial data than previously proposed relations, it may be better applicable to analyses of stress in the passive heart. © 1990 by ASME.
引用
收藏
页码:340 / 346
页数:7
相关论文
共 25 条
  • [1] STRAIN-ENERGY DESCRIPTIONS OF BIOLOGICAL SWELLING .1. SINGLE FLUID COMPARTMENT MODELS
    BOGEN, DK
    [J]. JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME, 1987, 109 (03): : 252 - 256
  • [2] CHOI HS, 1990, ASME, V112, P153
  • [3] PASSIVE BIAXIAL MECHANICAL-PROPERTIES OF ISOLATED CANINE MYOCARDIUM
    DEMER, LL
    YIN, FCP
    [J]. JOURNAL OF PHYSIOLOGY-LONDON, 1983, 339 (JUN): : 615 - 630
  • [4] STRESSES IN VENTRICULAR WALL
    DEMIRAY, H
    [J]. JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1976, 43 (02): : 194 - 197
  • [5] ERICKSEN JL, 1954, J RATION MECH ANAL, V3, P281
  • [6] Fung YC, 1981, BIOMECHANICS MECHANI, P242
  • [7] Green AE, 1970, LARGE ELASTIC DEFORM
  • [8] STRUCTURAL 3-DIMENSIONAL CONSTITUTIVE LAW FOR THE PASSIVE MYOCARDIUM
    HOROWITZ, A
    LANIR, Y
    YIN, FCP
    PERL, M
    SHEINMAN, I
    STRUMPF, RK
    [J]. JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME, 1988, 110 (03): : 200 - 207
  • [9] ON CONSTITUTIVE RELATIONS AND FINITE DEFORMATIONS OF PASSIVE CARDIAC TISSUE .1. A PSEUDOSTRAIN-ENERGY FUNCTION
    HUMPHREY, JD
    YIN, FCP
    [J]. JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME, 1987, 109 (04): : 298 - 304
  • [10] CONSTITUTIVE RELATIONS AND FINITE DEFORMATIONS OF PASSIVE CARDIAC TISSUE-II - STRESS-ANALYSIS IN THE LEFT-VENTRICLE
    HUMPHREY, JD
    YIN, FCP
    [J]. CIRCULATION RESEARCH, 1989, 65 (03) : 805 - 817