alternating stresses

An investigation of the effects of mean and alternating stresses on short fatigue crack growth under uniaxial loading is reported.

本文报道单向加载下平均应力和交变应力对疲劳短裂纹生长的影响。

Although the stress level is below the yield strength, long-term exposure to the alternating stresses may make the platform suffer the suddenly fatigue damage.

虽然应力水平远低于材料的屈服强度，但是在长期的交变应力作用下，桩腿有可能产生突然性的疲劳破坏。

Fatigue behaviour of y_2o_3-zro_2 ceramics under alternating stresses

Y2O3-ZrO2胸瓷在循环应力作用下的疲劳特性

The life of bending fretting fatigue was significantly influenced by the alternating stresses. The higher stress level was, the lower fatigue life occurred. The S-N curves of bending fretting fatigue appeared shapes of C type.

对于弯曲微动疲劳，交变应力对寿命的影响十分显著，应力水平越高，微动疲劳寿命越低，弯曲微动疲劳的S-N曲线呈C曲线型。

Legs in marine environment will be affected by the cycled waves, and alternating stresses will appear on the legs.

桩腿在海洋环境中会受到波浪的循环作用，在桩腿结构上会产生循环变化的交变应力。