生物软组织的幂律形式松弛和蠕变函数
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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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