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- A low cycle fatigue (LCF) testing on 16MnL sheet steel is reported. 本文工作对汽车大梁所用的16MnL薄板钢材进行了低周疲劳试验研究。
- Low cycle fatigue properties are affected adverselyby abusive grinding. 过量磨削对低循环疲劳性起着有害的作用。
- The initial requirements involved the belief that the presence of a duplex or "necklace" structure was intolerable from a low cycle fatigue aspect. 最初有人认为从低周疲劳性能的角度来说双层或“项链”组织是绝对不行的。
- Elastoplastic finite element analysis and low cycle fatigue life prediction of an engine combustor case were completed. 对某发动机燃烧室外套进行了弹塑性有限元分析和低循环疲劳寿命预测。
- The results show that low cycle fatigue life is reduced and cyclic stress is raised by torsional prestrain raising. 结果表明,扭转预应变降低低周疲劳寿命,循环应力随扭转预应变的增大而增大。
- Finally, the future directions in the research of multiaxial low cycle fatigue are suggested. 并建议今后多轴低周疲劳课题的研究方向。
- Recent development of multiaxial low cycle fatigue under nonproportional loading is summarized. 综述近年来国内外非比例载荷下多轴低周疲劳研究的进展和现状。
- Low cycle fatigue (LCF) tests of a directionally solidified nickel base superalloy were conducted at elevated temperatures. 本文研究了一种定向凝固镍基高温合金的高温低周疲劳行为。
- This paper presents the low cycle fatigue crackgrowth rates of PCrNi3MoVA (ESR) steel which are measured interms of J--Integral method. 本文应用J-积分方法测定了PCrNi3MoVA电渣重熔钢的低周疲劳裂纹扩展速率。
- For the same material, the low cycle fatigue life in high temperature air is longer than that in simulated BWR and PWR primary environments. 对于同种材料,高温空气中的低周疲劳性能优于高温水中的低周疲劳性能;
- Secondary crack, reared ridge, and microcrack in the front of the main crack tip can all hinder crack propagation during low cycle fatigue. 撕裂棱、裂纹前端微裂纹的桥接等因素是阻滞主裂纹扩展的主要机制。
- A method is outlined for making low cycle fatigue life prediction for engineering components subject to multiaxial loading. 介绍了一种预测受多轴交变载荷工程构件的低周疲劳寿命的方法。
- High temperature low cycle fatigue (HLF) life prediction models have great significance for design of high temperature structure under cycLic loading. 高温低周疲劳(HLF)寿命预测方法对于承受变幅载荷的高温构件的设计具有重要意义。
- To insure the safety of the pressurized spherical shell of the deep manned submersible,the low cycle fatigue is analyzed. 为了确保载人潜水器载人球壳的安全性,必须进行载人球壳的低周疲劳寿命分析。
- The probabilistic design process of low cycle fatigue (LCF) for gas turbine disk was developed by replacing deterministic design methods. 摘要基于涡轮盘结构的低循环疲劳设计流程,将概率设计理念融入设计过程中,提出了涡轮盘低循环疲劳的概率设计流程。
- The long-term life and low cycle fatigue life of low pressure turbine blade for an aeroengine under real loading spectrum is analyzed by using this method. 用该方法对某型发动机低压涡轮工作叶片在实际飞行载荷谱作用下的持久寿命和低循环疲劳寿命进行了分析。
- For the materials, which have no cyclic steady stage but exhibit cyclic softening, this method isn't suitable to determine the low cycle fatigue damage with the change of stress. 对没有明显循环稳定阶段并表现为循环软化响应行为的材料,不适合用应力的变化来定量的反映材料低周疲劳的损伤过程。
- Abstract: The equipment,such as toiler,pressure vessel and pipeline,subjected to cyclical load suffer failure as a result of the low cycle fatigue (LCF). 摘 要: 对在周期加载条件下运行的锅炉、压力容器、压力管道等设备,不可避免地产生低周疲劳的失效。
- The fatigue life is insensitive to the titanium alloying method.If alloys have the same titanium content, two kinds of alloys have similar low cycle fatigue life. 合金的疲劳寿命对加钛方式不敏感, 在相同钛含量下, 两种加钛方式的合金具有相近的低周疲劳寿命。