[Shape coefficient--a new concept to describe the vascular stent mechanical property].
In this paper, we advance a concept, shape coefficient, to describe the mechanical properties of shape factor concretely. Two sorts of shape coefficient are deduced from the plastic theory of bending beam. Under conditions of the same material and radius,a simple form of shape coefficient is acquired. The relevant computing results and experiment show that the limit load of vascular stent exists,and vascular stents in different width-thickness have the same shape coefficient so long as they are the same shape. These reveal the significance of the concept of shape coefficient and verify the correctness of the formula.
Dept. of Appl. Mechanics and Eng., Southwest Jiaotong University, Chengdu 610031, China. yangchenjie@switu.edu.cn
Jie
J
Yang
Nan
N
Huang
Qianxing
Q
Du
Yong
Y
Zhang
Qiu
Q
Chen
D015906:Angioplasty, Balloon, Coronary / Q000295:instrumentation*; D001696:Biomechanical Phenomena; D003198:Computer Simulation; D006801:Humans; D015607:Stents; D013718:Tensile Strength