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- Reliability of Fatigue Limit State of Concrete on Railway Bridges 铁路混凝土桥混凝土疲劳承载能力可靠度
- The fatigue limit of 45 steel has increased by a fac-tor of 55 and 74%. 45钢的疲劳极限分别提高55%25和74%25。
- Shear lag is reduced for prestress in serviceability limit state . 在正常使用状态下,预应力平抑了箱梁剪力滞效应。
- Compressive residual stress are the main factor in the increase of torsion fatigue limit. 喷丸后扭转疲劳极限提高的主要原因是残余压应力的作用。
- It is proved that plain concrete does not have a fatigue limit while for FRC it is uncertain. 结果素混凝土不存在疲劳机限;纤维混凝土是否存在确定的疲劳极限值仍属未知;
- Ultimate limit state for fatigue 疲劳承载能力极限状态
- Compressive residual stress are the main factor in the increase of torsion fatigue limit . 喷丸后扭转疲劳极限提高的主要原因是残余压应力的作用。
- Serviceability limit state for fatigue 疲劳正常使用极限状态
- In the face of exceptional conditions, the method is guaranteed to limit state corruption to the current instance. 在遇到异常情况时,此方法保证将状态损坏限制到当前实例。
- Under exceptional conditions, the method is guaranteed to limit state corruption to the current instance. 在异常情况下,该方法保证将状态损坏限制到当前实例。
- The limit state should be taken into account when considering any particular failure mode. [ISO/WG 16528-1, A. 2] 当考虑任何一种特定的失效模式时,理应考虑其极限状态。
- The limit state equations of main failure modes are formulated by the increment interval load method. 并提出用区间增量载荷法生成主要失效模式的极限状态方程。
- Results showed that the fatigue behavior of the YW-1 adhesive beared a resemblance to that of the metal material and the fatigue limit value of the copper oxide-phosphate inorganic adhesive was equal to 41 25% of the static strength value. 结果表明 :磷酸氧化铜无机胶的抗拉疲劳特性与金属材料的特性较相似 ,该无机胶的抗拉疲劳极限为其静拉伸剪切强度的 41 2 5%25。
- Limit state equation is presented for the welded pipeline according to code and FOSM method is used to obtain aseismic reliability of welded pipeline. 然后根据规范给出了供气管线在地震作用下的极限状态方程,并采用验算点法得到其可靠度。
- To improve this I made a modification from two sides:to increase the fatigue limitation of shaft and to decr... 改进后的导纸辊投入使用后,效果良好,经半年多运行,未发生轴头断裂现象。
- After experimental data processing, material's viscousness coefficient was acquired and a new method to determine fatigue limit by the threshold of plasticity energy dissipation was given. 通过对试验数据的分析,求出了材料的黏性系数,给出了利用塑性能耗的起点确定材料疲劳极限的方法。
- Firstly part of quadratic term of Taylor series is chosen; a low-dimension surface is used to approximate limit state surface; and the modified reliability formula is derived. 首次选取泰勒级数的部分二次项,用一个距原点最近点处拟合的超低维曲面近似极限状态面。
- The result indicates that the improvement of the fatigue limit is due to the nano-crystallization and severe plastic deformation in the surface layer induced by high-energy shot peening. 结果表明,高能喷丸后其表层组织发生严重塑性变形并实现组织纳米化,是提高弯曲疲劳寿命的主要原因。
- Because the HMA fatigue limit is the theoretical base of perpetual pavement design, to grasp the strain distribution and strain action of HMA layer is key for perpetual pavement design. 摘要沥青混合料疲劳极限的存在是永久路面结构设计的主要理论依据,因此掌握沥青层底应变的分布和应变行为规律是永久路面设计的关键。
- Comparative study on random sampling and Latin hypercube sampling with and without variance reduction techniques is carried out to a number of different limit state functions. 在一系列不同的极限状态函数条件下,对随机抽样法和拉丁超立方抽样法以及是否使用方差减缩技术进行了比较研究。