circular-patch cracking test

例句：

1. 1. The circular crazing test is a common method for evaluating the fatigue life of materials under cyclic loading.
   圆盘裂纹试验是一种常用的方法，用于评估材料在循环加载下的使用寿命。
2. 2.During the circular crazing test, the sample is subjected to a constant axial load and a sinusoidal bending moment.
   在圆盘裂纹试验中，样品受到恒定的轴向载荷和正弦弯曲力矩的作用。
3. 3. The results of the circular crazing test provide valuable insights into the behavior of materials under fatigue conditions.
   圆盘裂纹试验的结果为理解材料在疲劳条件下的行为提供了宝贵的见解。