把滴形管的强度分析问题分解为:沿管轴线方向的压力问题与管沿周线方向均布压力的平面应变问题的叠加。
The strength analysis of a drop-shaped tube is resolved into the following problem: axial compression together with a plane state of strain with uniform internal pressure.
为了解决具有异形内轮廓的冲压件翻边工序中易产生裂纹等缺陷,分析了异形内轮廓翻边成形时周向应变分散效应。
In order to solve the lack of flaw when flanging the part with freeform internal profile, the circumferential strain dispersion effect has been analyzed in flanging the profile.
给出了静力荷载下的荷载变形曲线、低周反复荷载下的荷载变形滞回曲线以及关键部位的应变数据。
The load displacement curve under static load, load displacement hysteric curve under repeated low cycle load and strain data at key points are presented.
对调质处理的45碳索结构钢进行了应变循环低周疲劳实验以及应力控制棘轮失效实验。
The cyclic strain low cycle fatigue and cyclic stress ratcheting failure of 45 carbon steel treated by quenching and tempering were experimentally investigated.
对微钒钛高抗震性能建筑结构钢进行了模拟地震载荷高应变低周疲劳试验。
The high strain low cycle fatigue properties of V ti micro alloyed high anti seismic structural steel were studied with simulated earthquake loading.
考虑零构件的随机因素,将随机有限元方法引入到交变载荷下弹塑性有限元的迭代格式中,得到局部应力应变的随机响应,为低周疲劳可靠性分析提供了更精确的依据。
The component randomness is considered. The SFEM is introduced in the iterative formulas of EFEM under cyclic loading to obtain the random response of local stress and strain.
结果表明,周向应变因子准则符合得最好。
It is shown that the circumferential strain factor criterion agrees very well with them.
研究结果表明,低周拉扭疲劳加载下,拉与扭应力响应的硬化与软化特性取决于应变加载路径和加载参数。
The results showed that the characteristics of cyclic hardening or softening depend to the strain loading paths and the loading parameters.
将建筑结构钢抗震性能作高应变低周疲劳问题处理。
The anti-seismic properties of building structural steels was treated as a problem of high strain low cycle fatigue.
本文讨论了线弹性断裂力学的复合型断裂准则。推荐了周向应变因子准则。
In this paper, the criteria of mixed mode brittle fracture are carefully examined. It has been shown that, the circumferential strain factor criterion is rational and safe.
根据桩周土体应变场特点对桩周地基进行了区域划分。
The area of the pile foundation is measured According to the characteristic of the soil strain field aroud a pile.
引入了概率循环应变—寿命曲线描述低周疲劳循环应变—寿命试验数据的分散性。
To model the random cyclic strain life relations during low cycle fatigue, probability based cyclic strain life curves are suggested.
记录了各自的循环应力—应变滞后环,得出了试样的循环响应特征和各试样的高温低周疲劳寿命。
The individual cycle-strain hysteresis loops were recorded, and the cycling response and high temperature low cycle fatigue life were obtained.
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。
The results show that low cycle fatigue life is reduced and cyclic stress is raised by torsional prestrain raising.
本文对45号钢在静载荷下与在循环加载下的本构关系进行了探讨,并给出了低周与高周应变循环的疲劳寿命表达式。
The 45 steel natural relation of dead load with cyclic load and low frequency and high frequency strain cycling fatigue life are studied.
该方法提供了能力,使轴向,周向和离轴应变对冒口人体测量和金属复合材料的联合区域。
The method provides the capability to make axial, circumferential and off-axis strain measurements on the body of the riser and in the metal to composite joint region.
本文以大客车车身典型零件为研究对象,采用局部应力应变法预测承受高周载荷零构件的疲劳寿命。
In This paper, the method of local stress and strain was used to predict the fatigue life of bus body parts under high cycling load.
得到盾构管片应变、收敛变形和洞周土体变位在整个车站施工过程中的变化规律。
The variation laws of strain, convergence of the shield segments and displacement of the soil around station tunnel are achieved.
在材料低周疲劳过程中,由检测的应变信号,利用现代谱分析技术处理,得到材料疲劳过程的塑性变形并进行实时跟踪。
The modern signal analysis is used to measure the plastic strain in low cycle fatigue in this paper.
研究了应变控制原位生成复合材料的室温低周疲劳行为。
The low cycle fatigue behavior of in-situ composites was investigated under total strain-controlled conditions at the room temperature.
阐述了砼结构体表比和约束比对温度和收缩应变和裂缝的影响程度,推导出R.C结构在四周无变位边界约束条件下的温度和收缩应变、应力及裂缝宽度计算公式和运用实例。
The formula of strain and crack width of temperature and contraction with no varying place constraint con detion are deduced, capale be design basis for crack control of R. C structure.
充足的适应变化的外周循环取决于其优化配置。
Adequacy of adaptive changes of peripheral circulation depends on its optimal distribution.
结合对合金微观变形结构的观察,分析了温度、应变保持时间对合金低周疲劳性能的影响。
The effects of temperature and strain dwell time on properties of the alloy were analyzed with microstructure observation.
动剪切模量和阻尼特性接近于砂性土。影响阻尼特性最明显的因素是剪应变和周压力。
The values of the dynamic shear modulus and the damping factor are close to those of sandy soil.
微合金元素钒的加入有利于钢筋强度与塑性综合提高,降低钢筋应变时效敏感性,提高钢筋高应变低周疲劳性能。
The accession of vanadium has shown a great effect on improvement of coordination between strength and ductility, sensitivity to strain aging and high strain and low cycle fatigue property.
微合金元素钒的加入有利于钢筋强度与塑性综合提高,降低钢筋应变时效敏感性,提高钢筋高应变低周疲劳性能。
The accession of vanadium has shown a great effect on improvement of coordination between strength and ductility, sensitivity to strain aging and high strain and low cycle fatigue property.
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