The result indicates that, since the crack emerged in asphalt pavement, its dynamical charatiristic has been changed greatly, such as inherence frequency and vibration model.

• 动应力强度因子分布规律与外荷载变化曲线相似,随着阻尼比的增加,应力强度因子衰减的很快,同时应力强度因子峰值出现的时间逐渐后移。