进行了碳化环境下预应力混凝土试件弯曲受拉和直接受压的耐久性试验研究，阐述了碳化作用对预应力混凝土结构的损伤机理。
The durability experiment of prestressed concrete specimens in the bending tensile status or in the directly compressive status in carbonation environment has been carried out.
经弯曲试验后，该膜仍可保持良好的疏水疏油的双疏性特征。
After the bending test, the mats could still keep their good amphiphobicity.
着重研究了机械冲击和应力对无铅BGA封装焊点可靠性的影响，介绍了BGA 封装的可靠性力学试验（跌落、弯曲试验）及其分析方法。
The methodologies for free drop test and bending test are introduced, considering the important effect of mechanical stress on the reliability of lead-free BGA packaging.
从而其分片试验、收敛性等性质也同时移植到板弯曲元，使两者处于同一水平上。
Therefore the theories such as patch test and FE convergence etc. can be moved to plate bending, thus both sides will be on the same theoretical level.
用应力环腐蚀试验和三(四)点弯曲试验研究了某J 55(即石油套管)渗氮套管在不同试验条件下的腐蚀行为，并和未渗氮套管的抗腐蚀性进行了比较。
The resistance of nitrided J55 casing to sulfide stress cracking (SSC) was studied by C-ring testing and three-point bending testing under different conditions.
通过对管件弯曲角度的试验结果与模拟值的对比分析，证明了建立管件有限元模型的正确性。
The analysis of the simulation value compared with the test results of pipe fittings bended Angle proved the validity of the Finite Element Modeling the tubes bended forming process.
本文应用弹塑性弯曲理论提出了一种消除焊接对接接头角变形的平面外拘束力的计算方法，计算了极限拘束力、拘束长度和反变形的量值，并通过试验验证了方法的有效性。
By the theory of elastoplastic bend, this paper prowents a method to calculate out - of -- plane restraint and reverse deformation that are made use of to remove angle deformation in butt joints.
同时在试验过程中采用四点响应信号综合评估法，证实能有效地分离出混杂在扭转振动信号中的弯曲振动的频率成分，提高了结果的准确性。
In the experiment, 4 signals are evaluated synthetically to separate the bending component intermixed in the torsional vibration so as to improve the accuracy of test results.
同时在试验过程中采用四点响应信号综合评估法，证实能有效地分离出混杂在扭转振动信号中的弯曲振动的频率成分，提高了结果的准确性。
In the experiment, 4 signals are evaluated synthetically to separate the bending component intermixed in the torsional vibration so as to improve the accuracy of test results.
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