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生物软组织的幂律形式松弛和蠕变函数

  来源:120online      日期:2007-05-09
医用生物力学2000年第3期第15卷讨论作者:刚芹果单位:河北大学数学系保定071002关键词:软组织;幂律;松弛模量;蠕变柔量...
  摘 要:本文利用幂律形式的松弛和蠕变函数,对一些生物软组织(如,软骨、动脉、输尿管、肠系膜等)的实验结果进行了分析,发现该形式能够揭示它们的力学特征。

RELAXATION MODULUS AND CREEP COMPLIANCE OF SOFT TISSUE WITH POWER-LAW MODEL

gang Qinggo(Dept. of Mathematics, Hebei University, Baoding, 071002)

  Abstract:With the power-law relaxations and creeps, analysis on the experimental results of some soft tissues (i.e. cartilage, artery, ureter, mesentory etc.) was made. It was found that the power-law model could show up their mechanical properties.

  Keywords:soft tissue, Power law, Relaxation modulus, Creep compliance基金项目:国家自然科学基金项目资助(39670201)参考文献:

  [1]冯元桢,生物力学,北京:科学出版社,1983.

  [2]何平笙,高聚物的力学性能,合肥:中国科学技术出版社,1997.

  [3]Smit W, deVries H, Rheological models containing fractioral derivates. Rheol acta. 1970. 9: 525~534.

  [4]Larson RG, Constitutive relationships for polymeric materials with power-law distributions of relaxation times. Rheol acta. 1985. 24: 327~334.




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