家兔肌腱的蠕变变形行为的实验研究

AN EXPERIMENT STUDY ON CREEP DEFORMATION OF RABBIT TENDON

研究了家兔肌腱的蠕变规律 ,测定了稳定蠕变速率等力学参量 .通过对试验结果的分析 ,建立了肌腱的蠕变本构关系 .结果表明 ,蠕变应变与瞬时应力和时间有关 .在一定的瞬时应力作用下 ,稳定蠕变速率近似为常数 .稳定蠕变速率与瞬时应力近似成指数关系 .

This paper investigates the creep deformation law of rabbit tendon. Steady creep speed and other parameters are measured. By analyzing the creep test results, the constitutive relation of tendon under creep condition is obtained. The results show that creep strain has relation with transient stress and time. Under a certain transient stress, the steady creep speed is a constant. The relation between the steady creep speed and the transient stress can be expressed by an exponent function.