Method of repeated tension fatigue testing for fusion welded joints 熔焊接头重复拉伸疲劳试验方法
The fatigue experiment of steel strand with pulsating tensile load and doubly piled clamping apparatus 钢绞线脉动拉伸疲劳试验和双层叠加式夹具
So the tensile fatigue tests of the limited width specimen with center - hole were performed for studying the correlation 所以本文对有限宽板中心带孔试件进行了拉伸疲劳试验,用以研究这种相关性。
The cycle numbers to fatigue failure of asphalt concrete can be increased greatly by the utilization of polyester fiber , and this enhancement is presented more significantly at lower stress levels 间接拉伸疲劳试验也表明,聚酯纤维能提高沥青混凝土的疲劳寿命,且在低应力的情况下改善效果更加明显。
The dynamic characteristics and fatigue property of polyester fiber modified asphalt concrete are investigated in this paper , and the effects of polyester fiber on the viscoelastic characteristic and fatigue performance arc analyzed 摘要采用动态模量试验和间接拉伸疲劳试验研究了聚酯纤维沥青混凝土(纤维掺量为0 . 25 % )的动态模量特性和疲劳性能,分析了聚酯纤维对沥青混凝土粘弹特性和疲劳性能的影响。