载荷比 meaning in English
load ratio
Examples
- The new machine can increase 3 times the payload asagainst 1988
新机器的有效载荷比1988年增加了两倍。 - Cracked and repaired specimens were tested under static load . in the last chapter , some ideas for aviation maintenance are proposed by using the theoretical calculation combining with the test results
强度测试结果表明，含裂纹铝板修补后的拉伸载荷比修补前有明显提高，复合材料胶接修补金属板后的静强度可以增大。 - Studies on the fatigue crack propagation rate ( fcpr ) indicate that load ratio ( r ) has a great effect on the fcpr : the greater load ratio is , the higher the fcpr becomes , and the lower kth shows . compared with load ratio , the thickness of the specimen has a lower effect on the fcpr
对镁合金的疲劳裂纹扩展特性的研究表明：载荷比r对镁合金az91 ， am50裂纹扩展行为具有很大的影响。 r值越大，裂纹扩展速率越高，疲劳门槛值k _ ( th )越小；试样厚度t对镁合金az91 、 am50稳态裂纹扩展速率的影响没有r值那么明显。 - There is a slight drop of the fcpr when the specimen s thickness increases . however , the thickness of the specimen exerts a great influence on kth and fatigue life ( n ) : the thicker specimen is , the higher fatigue life ( n ) becomes , and the greater kth shows . under control of the same conditions , the fcpr of am50 is not so high as that of az91 . there are some correlations between load ratio ( r ) and the fatigue surface : when load ratio becomes great , small flat surfaces increase while dimples decrease
试样厚度增大，稳态裂纹扩展速率略有减小。但是，试样厚度影响试样的疲劳寿命和门槛值：试样越厚，疲劳寿命越长，门槛值越大；在试样尺寸和加载条件相同的情况下， am50的疲劳裂纹扩展速率较az91小，疲劳寿命则比az91长。载荷比r影响试样的断口形貌：载荷比r越大，对应相同k值出的断口小平面越多，韧窝越少。