分析了非均匀接触下燕尾形榫头连接的应力状态，并借助于模拟试验，提出了非均匀接触导致疲劳破坏的基本痕迹特征。
The basic fatigue failure characteristics have been analyzed according to the stress analysis and simulation test under inhomogeneous swallowtail between compressor disk and blade.
由于这是一种非破坏试验方法，所以仅一个模型就可以对几种不同转速以及静过盈状态下的应力进行测定。
The test method employed is non-destructive, so that only one model is needed for investigating stresses in a rotating disc at various speeds, and for determining the static shrink fit stresses.
对试件进行了非线形有限元分析，得到的应力分布与试验破坏现象一致。
Non-linear finite element analyses were also carried out and the stress distribution pattern in the wall was consistent with the experimental results.
试验结果表明，与非预应力碳纤维布加固梁相比，预应力碳纤维布加固后混凝土梁中受拉钢筋应力幅显著降低，混凝土梁疲劳寿命明显延长。
Experimental results show that the stress amplitude of the tensioned bar is decreased remarkably and the fatigue life is then obviously increased as compared to normal strengthening method.
同时本文针对非预应力FRP筋混凝土存在较大裂缝和挠度的特性进行了预应力FRP筋混凝土梁的抗弯性能的试验研究和理论分析。
There is another experimental study and theoretical analysis on flexural behavior of concrete beams prestressed with FRP reinforcement in this dissertation's.
试验结果表明，随着受拉区非预应力筋配筋率和预应力筋配筋率的增大，梁的延性逐渐减小；
The experimental results show that the ductility of the beams decreases gradually with the increasing of non prestressed and prestressed reinforcement index in the strained zone;
试验结果表明，随着受拉区非预应力筋配筋率和预应力筋配筋率的增大，梁的延性逐渐减小；
The experimental results show that the ductility of the beams decreases gradually with the increasing of non prestressed and prestressed reinforcement index in the strained zone;
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