知搜-全球专利检索

  1. 登录
  2. 注册
发明公开
CN104406866A 应力、应变控制模式对沥青疲劳性能影响区域的划分方法 有权

应力、应变控制模式对沥青疲劳性能影响区域的划分方法
摘要：
应力、应变控制模式对沥青疲劳性能影响区域的划分方法，它涉及一种对沥青疲劳性能影响区域的划分方法。本发明是为了解决两种控制模式下沥青疲劳性能差异显著的技术问题。本方法如下：将应力、应变两种控制模式下复数模量-相位角曲线转折点处的累积耗散能取平均值再取整作为控制模式对沥青疲劳性能影响的阈值，即当累积耗散能小于该值时，疲劳过程不受控制模式影响，为疲劳过程第Ⅰ阶段，当累积耗散能达到该值时，疲劳过程开始受控制模式的影响，为疲劳过程第Ⅱ阶段。本发明将应力、应变两种控制模式对沥青疲劳影响区域进行划分，揭示了不同控制模式下沥青疲劳特性。本发明属于荷载控制模式对沥青疲劳性能影响区域的划分领域。
摘要（英）：

The invention provides a method for dividing influence areas of asphalt fatigue performance in stress and strain control modes, and relates to a method for dividing influence areas of asphalt fatigue performance. The method is aimed at solving the technical problem that asphalt fatigue performance has significant differences in two control modes. The method comprises the following steps that cumulative dissipated energy at curve breaks of a complex modulus-phase angle curve in each of the two stress and strain control modes is averaged and rounded to serve as a threshold value of influence of the corresponding control mode on asphalt fatigue performance; when the cumulative dissipated energy is smaller than the threshold value, the fatigue process is not influenced by the corresponding control mode, and asphalt is in a first stage of the fatigue process; when the cumulative dissipated energy reaches the threshold value, the fatigue process begins to be influenced by the corresponding control mode and the asphalt is in a second stage of the fatigue process. The method is used for dividing the influence areas of the asphalt fatigue performance in the two stress and strain control modes, thereby disclosing the asphalt fatigue performance in different control modes. The method belongs to the field of division of the influence areas of the asphalt fatigue performance in load control modes.

公开/授权文献
0/0