疲劳
- 与 疲劳 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Mechanics mechanism of thermal fatigue and the affection of assembly temperature on thermal fatigue life were studied by using finite element method in consideration of the multilinear kinematic hardening of a material.
考虑材料的多线性塑性随动强化性质,采用有限元方法研究了热疲劳过程的力学机理和安装温度对热疲劳寿命的影响。
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A simple sample with crack is analyzed on thermal fatigue applying finite element method and multilinear kinematic hardening rules of material, based on which the processes and rules of the thermal fatigue crack opening are studied.
用有限元方法并考虑材料的多线性随动强化性质对带有裂纹的简单试件模型进行热疲劳分析,研究热疲劳裂纹张开的过程和规律。
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In the meantime, a new relation between the coefficient of variation for a normal variate and its sample size is achieved, where the probability to make mistake Ⅱ is considered 5 The probability distribution of fatigue strength at given life under large sample size determined by a new method is found to follow the log-normal distribution and normal distribution, and a new method are developed to estimate the characteristic parameters of probability distribution of fatigue strength from the probability distribution of traditional tensile properties.
根据P-S-N曲线的要求,采用概率统计方法,导出了考虑犯Ⅱ类错误的概率时获取给定精度P-S-N曲线所需的最少子样容量,引入了不同方法获取的P-S-N曲线结果是否趋同的判别标准,得到了P-S-N曲线的寿命求解法和系数求解法获得趋同结果的条件。 5)研究了大子样条件下指定寿命时疲劳强度的概率分布,并提出了根据拉伸性能的分布估算材料疲劳强度概率分布参数的一种方法。
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This paper summarizes the research on fatigue of steel bridges and orthotropic steel bridge decks in the world, which give an important reference to the fatigue research and design of steel bridges in our country.
本文对国外钢桥及正交异性钢桥面板的疲劳研究作了详细的综述,这对于我国钢桥疲劳研究和设计具有重要的参考和借鉴作用。
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The micro mechanism considers that the inclusion in material, called micro defect crack, is the nucleus of internal crack initiation, interaction, between the stress field of the micro defect crack tip as loading and strain field of crystal lattice caused by crystal point passim (as vacancies or interstitial atom, H, O, N et al), will trap the point passim, and cause the enrichment of point passim around the micro defect crack.
其中疲劳裂纹内部萌生的核心是材料中的第二相粒子、夹杂物或微空洞,称为微裂纹;而微裂纹的长大是材料中间歇原子或空位等点缺陷在微裂纹尖端富集沉淀的过程,微裂纹的长大速率受到点缺陷富集扩散速率和疲劳载荷的双重影响。
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The results indicate that, the inte r face of laminated composites plays a significant role in fatigue crack growth. T he fatigue crack propagation is arrested by the interface delamination in the ex plosive bonded LY12 laminate.
结果表明,层合板中的层间界面性能对其疲劳性能具有重要影响,在LY1 2 爆炸复合板中,垂直板面L-S取向和L-T取向的疲劳裂纹在扩展过程中都发生了明显的止裂。
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As long as obtain S-N curve, the actual load history and the cumulative damage rule of the submarine pressure hall, the estimate of the fatigue life with pressure hull become possible.
只要取得船体构件材料之S-N曲线、船体构件之实际负荷履历以及疲劳累积损坏率这三方面的评估资料,即可对压力壳的疲劳寿命进行合理预估。
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The calculating formula for fatigue reliability of single component was deduced. A criterion of fatigue failure of integral platform and the method for determining key failure mode of platform were suggested,and the computing method for failure probability of integral platform was presented.
在此基础上给出了单个构件的疲劳可靠性计算公式,提出了平台整体疲劳失效的简化判断依据和平台关键失效模式的确定方法,并给出了平台整体失效概率的计算方法。
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The results show that the fracture mode of blade is vibration fatigue and the main cause of initiation of fatigue crack is the mismatch between rabbet and tongue-and-groove.
结果表明,叶片的断裂模式为振动疲劳,叶片榫头与榫槽配合不当是萌生疲劳裂纹的主要原因。
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For the first time in the dissertation, the fatigue failure of the components is treated as a random event.
但由于现在常用的几种疲劳累积损伤理论不能描述随机变量,因而它们不能解决疲劳可靠性问题。
- 推荐网络例句
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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。
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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
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。