查询词典 fatigue strength

But under the real working conditions where exist alternating load sequence, no paper mentions whether can LAL still increase fatigue strength so far.

但在实际使用载荷忽高忽低交替作用的条件下，低幅载荷是否也能增大疲劳强度，迄今尚未有文献论述。

"Carbon steel has high and low temperature strength , is very tough and has excellent fatigue strength ."

碳钢具有高温和低温强度，具有很高的韧度和优异的抗疲劳强度。

A kind of method to evaluate and test the tension-compression fatigue strength of gray cast iron was introduced in this paper.

介绍了一种评价与测试灰铸铁铸件的拉压疲劳极限的方法。

The current research points out that for the CFCHS joints the linear extrapolation method can be used for chords,whereas the quadratic extrapolation method must be used for braces.The hot spot stress distributions on the CFCHS joints tend to be more uniform and their SCFs become smaller significantly,compared with the CHS joints.Axial tension on the brace puts the CFCHS joints at a disadvantage,which produces higher SCFs than axial compression.The effects of nondimensional geometric parameters β,τ and γ on SCFs of the chords of the CFCHS joints are basically the same as those of the CHS joints,but for the braces,there is a bit difference in the effects of parameters β,τ and γ between the two kinds of joints.Concrete has the function of improving the CFCHS joint rigidity and then decreasing SCFs which is expected to increase fatigue strength,but concrete strength grade does not exert significant influence on SCFs.

研究表明：CFCHS节点的热点应力，对主管可采用线性外推方法，对支管需采用二次外推方法；相比CHS节点，CFCHS节点的热点应力分布趋于均匀，SCF显著减小；CFCHS节点支管轴向受拉比受压不利，SCF增大；CFCHS节点几何参数β，τ，γ对主管SCF的影响效应与CHS节点基本一致，但是对支管SCF的影响效应与CHS节点有些差异；混凝土的作用主要是改善CFCHS节点刚度，从而降低SCF，并预期可提高疲劳强度，但混凝土自身强度等级的高低没有显著影响节点的SCF。

Products manufactured by the Chinese National Automotive Test Center tests: fatigue strength, static torsional strength are in line with National standards.

公司生产的产品经过中国国家汽车检测中心检测：疲劳强度，静扭强度均符合国家标准要求。

We find that the proportion of the contribution of the three factors on the fatigue strength improvement of the peened joints depends on the base metal static strength.

结果表明：超声冲击处理提高焊接接头疲劳强度的硬化，改善焊趾几何外形和在焊趾区形成表面压应力三者贡献的大小，与被处理焊接接头的母材静强度有一定的相关性。

The alloy boasts good shaping property, high corrosion resistance, weldability and fatigue strength, medium static strength, is used to make airplane oil tank, oil pipe, oil pipe, metal sheet and instrument for vehicle and vessel, street lamp post and riveted wire.

典型用途：此合金有良好的成型加工性能，抗腐蚀性，可焊性，疲劳强度与中等的静态强度，用于制造飞机油箱、管，以及交通车辆、舶的钣金件、表、灯支架等。

The alloy boasts good shaping property, high corrosion resistance, weldability and fatigue strength,medium static strength, is used to make airplane oil tank, oil pipe, oil pipe, metal sheet and instrument for vehicle and vessel,street lamp post and rive

典型用途：此合金有良好的成型加工性能，抗腐蚀性，可焊性，疲劳强度与中等的静态强度，用于制造飞机油箱、油管，以及交通车辆、船舶的钣金件、仪表、街灯支架等。

In practical application item, UIC515 Code is firstly applied for analyzing the complete welded frame by finite element method to get the area with bigger nominal stress and lower fatigue behavior, and then study the hot spot stress fatigue strength evaluation approach of the typical fillet ring joint at the connection of tubular transom and side frame, the plate to plate end weld between side frame web plate and anti-yaw damper hold and the non-close ring end weld at the connection of braking unit hold and tubular transom.

在热点应力疲劳评估时，首先对焊接构架中的环向角焊缝、板间端焊缝以及非闭合环向端焊缝进行简化，得出了相应的几何应力集中系数和热点应力疲劳极限，为热点应力疲劳评估提供了依据。

In this paper, the distribution of biaxial bending strength and the influence of loading rate on fatigue strength in the biaxial bending test by use of soda-lime glass specimen with micro indentation crack are studied.

一、引言在设计和使用玻璃这类脆性材料作为结构元件时，主要应考虑两个问题：材料的强度值具有很大的分散性；(2)在通常的使用环境中，材料的强度会随加载时间的延长而降低〔'。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了