Title :
A viscolelastic model for hysteresis loop applicable to aorta and other soft biological tissues
Author :
Arotaritei, Dragos ; Ciorap, Radu ; Mihai, Ilea ; Turnea, Marius
Author_Institution :
Dept. of Inf., Gr. T. Popa Univ. of Med. & Pharmacy, Iasi, Romania
Abstract :
Hysteresis is often present in strain-stress curves that describe the mechanical properties of the blood vessels. In this paper we propose to use the Maxwell-slip model in order to describe the hysteresis curve in aorta and other blood vessels. An optimization method for parameters of the Maxwell-slip model using variable length genotype adapted for differential evolutionary algorithm is proposed. The experimental results showed a very good approximation of the hysteresis curve using the Maxwell-slip model and the proposed optimization method.
Keywords :
biomechanics; blood vessels; evolutionary computation; stress-strain relations; viscoelasticity; Maxwell-slip model; aorta; blood vessel; differential evolutionary algorithm; hysteresis loop; optimization method; soft biological tissues; strain-stress curves; variable length genotype; viscolelastic model; Adaptation models; Arteries; Biological system modeling; Biological tissues; Genetic algorithms; Hysteresis; Stress; Hysteresis; Maxwell-slip model; crossover; genetic algorithm; variable length genotype; viscoelastic model;
Conference_Titel :
Medical Measurements and Applications Proceedings (MeMeA), 2011 IEEE International Workshop on
Conference_Location :
Bari
Print_ISBN :
978-1-4244-9336-4
DOI :
10.1109/MeMeA.2011.5966750
