这种合金能够缓解金属超应力引起的腐蚀所造成的断裂,其抗硫酸腐蚀的性能也有很大的改善。合金20在化工生产过程中具有广泛的应用。
This alloy retards stress corrosion cracking and has improved resistance to sulfuric acid. Alloy 20 finds wide use in all phases of chemical processing.
本文还证实了线性超应力模型可以予测实验条件下等应变区的存在,给出了铝和铜的速率灵敏系数K的建议值,讨论了铝的K值的普适性等问题。
The numerical values of the rate-sensitivity parameters K for aluminum and copper are proposed. The essence of general applicability of parameter K is considered for aluminum.
结果表明:基于净锥尖阻力的相关关系比其他经验方法具有较高的精度,可以有效地预测该地区泻湖相沉积土的固结屈服应力和超固结比。
It is shown that the correlation based on the net tip resistance has much higher accuracy for estimating the consolidation yield stress of lagoonal deposit soil than other methods.
钢牛腿瞬时应力场识别完成后,可立即判断其应力是否超界。
After the instantaneous stress field identification of Steel bracket. we estimate the stress value.
用逐次超松驰迭代法求出了扭转应力函数差分值。
Using the successive over-relaxation method, the difference values of the torsion stress function are determined.
加载速率效应、蠕变以及应力松弛都是砂土材料本身黏性的反映,而与超孔隙水压力的消散无关。
Loading rate effect, creep and stress relaxation should be attributed to the viscous properties of the sand specimens, but not to the delayed dissipation of excess pore water pressure.
研究二维弹性力学问题边界积分方程,通过分部积分变换消除了常规导数边界积分方程中的超奇异积分,获得仅含强奇异积分的应力自然边界积分方程。
Hence, a new stress natural BIE is developed, in which there only exist the strongly singular integrals instead of the hypersingular integrals in the conventional stress BIE.
利用弹塑性有限元模型模拟多层圆筒在超压处理压力下,卸载后以及重新加载设计压力时的应力分布。
Stress distribution in the condition of SPT loading, unloading and design pressure reloading was simulated using elastic-plastic finite element model.
试样的轴向应力和应变均匀问题是霍普金森杆试验行之有效的必要条件,而这对肌肉类粘弹性超软材料尤为重要。
The validity of a SHPB test is based on the assumption of stress and strain uniformity within the specimen, especially when muscle-like viscoelastic exter-soft material is tested.
基于结构力学中超静定结构的相关理论,讨论了预应力次内力产生的机理及其对结构的影响,进而提出合理利用次内力的设计思想。
On the basis of relevant theory of hyperstatic structure in structural mechanism, the paper discusses the mechanism of secondary interior force caused by prestressing and its effect on structures.
结论在微骨痂修复微破裂过程中可能存在一种“超微小梁”结构,这种结构对于受损骨小梁承受应力以及修复均有利。
Conclusions a kind of structure named ultra-trabeculae might appear during the healing process of microcracks which is beneficial to bear loading and repair the damaged trabeculae.
引入两个势函数,在频域中得到了应力、位移和超孔隙水压力响应解答。
The analytical solutions of stresses, displacement and pore pressure amplitude are derived in frequency domain by introducing two scalar potential functions.
在数值模拟计算含缺陷球罐应力场的基础上,对含缺陷球罐在工作压力和超压两种工况下进行了断裂安全评定和强度校核。
Based the numerical simulation for sphere tank with defects, fracture safety assessment and stress strength verification are done under the cases of working pressure and over pressure.
如果超界,可立即报警,并且每个牛腿任意时刻的应力场状态都可以清晰的显示在计算机屏幕上,便于工作人员操作监测整个结构的安全性。
At the same time, any time stress condition of bracket can show on the computer screen that convenient the workers inspect the safety of structure.
本文利用动力三轴仪模拟列车荷载作用下铁路路堑中超固结粘性土的受力情况。 研究了在列车荷载作用下该土的动应力与动应变的关系及轴向永久变形的若干规律。
This paper discusses the stress conditions of the overconsolidation cohesive soils cut out of the railway under the load of a moving train simulated through applied dynamic triaxial apparatus.
由于低渗透页岩地层流体高温膨胀导致的超孔隙压力,有可能产生有效拉张应力,严重时会导致地层破裂。
Due to the higher thermal expansion of fluid in low permeability shale, the super pore pressure may lead to the development of effective tensile stress and even formation fracturing.
从而推得多叶应力区扭转光纤中的超本地模,由超本地模的相位常数来确定该光纤的双折射。
Then, super-local modes in multi-lobe stress region spun fibers can be obtained by using mode transform. Finally, the fiber birefringence is decided from the phase constants of super-local modes.
计算结果表明超硬涂层材料滚动接触的力学行为和一般的滚动接触的力学行为存在很大的不同,主要表现在对最大剪切应力的影响。
The calculation shows that the dynamical behavior of rolling contact about super hard material coatings is very different from the dynamical behavior of rolling contact about ordinary contact.
试验结果验证了砂土液化典型特征:超静孔隙水压升高,有效应力降低,体积压缩积累增大。
Experimental results show the typical characteristics of soil liquefaction: excess static pore-water pressure increases, effective stress decreases, and volumetric strain increment increases.
根据半无限土体中小孔扩张问题的解,分析了在超孔隙水压作用的瞬时,土体中的应力、变形等,并提出了经验公式。
On the basis of cavity expansion theory, the formulae of excess pore water pressure has been proposed, and the stress and strain of soil had been analyzed.
本文将反应堆压力壳的球顶盖、上下法兰、螺栓、筒体及双道O形环作为一个超静定系统进行了应力和变形分析。
The reactor pressure vessel composed of spherical top and lower heads, upper and lower flanges, bolts, cylinder and two O-rings, as a static indeterminate system has been studied.
超固结地层发生地面沉降需要一个大于超固结应力的起始附加应力来驱动。
For over-consolidated strata, land subsidence usually occurs under the critical condition that initial additional stress is larger than over-consolidation stress.
为此,提出一套新思路和新技术,综合应用弹性力学圣维南原理、水管超冷和强力保温措施,解决了重力坝加高的温度应力难题。
The SaintVenant s Principle in the theory of elasticity, the water pipe cooling and the strong superficial thermal insulation are used comprehensively to solve th.
袁惠群。李成英。周卓稀土超磁致伸缩材料应力与电磁耦合特性的实验研究。
Li C Y. Yuan H Q. Yang L S Measurements of the mechanical and electromagnetic properties of rare earth giant magnetostriction materials.
导出了极坐标系下扇形截面杆件扭转问题的差分格式;用逐次超松驰迭代法求出了扭转应力函数差分值。
A torsion difference scheme of the bar with sectorial cross-section is developed in polar coordinate system.
结果表明:超细晶工业纯钛在热压缩过程中,热压缩条件不同流动应力变化规律会有所差异。
The results showed that the flow stress of UFG CP-Ti would change significantly with the thermal compression conditions.
地震作用导致岩体变形破坏的主要机制是剪应力积聚和超静孔隙水压力累积效应的耦合作用。
Essentially the main mechanism of deformation and failure of rock mass induced by earthquake is the coupling effect of shear stress and excess static pore water pressure accumulation.
超深亚微米半导体结构中的局域微应力、应变的精确测量通常必须借助复杂的微结构分析、测量手段。
The accurate measurements of local micro-stress and strain in ultra deep sub-micron semiconductor structures usually resort to complicated microstructure analysis, measurement methods.
超深亚微米半导体结构中的局域微应力、应变的精确测量通常必须借助复杂的微结构分析、测量手段。
The accurate measurements of local micro-stress and strain in ultra deep sub-micron semiconductor structures usually resort to complicated microstructure analysis, measurement methods.
应用推荐