应力集中

减小指端宽度非但能增大指接受力面积，并使指端缺口旁的应力集中得到缓和.NET组件无缝地交互。

Not only the area of the net section increases , but also the concentration of stresses beside the notch relaxes as the tip thickness decreases .

孔边有加强环的轴对称球壳圆孔的应力集中

Concentration of stresses near circular hole of an axisymmetrical spherical shell with stiffening ring

平面P波入射下地下洞室群动应力集中问题解析解

An analytical solution for dynamic stress concentration of underground cavities under incident plane P waves

针对传统有限元方法在拓扑优化过程中应力集中处求解不准确的问题，引入了扩展有限元法（Extendedfiniteelementmethod）以增加应力求解的精度。

To increase the accurate of stress computation , X-FEM method ( Extended Finite Element Method ) is introduced .

最后讨论了P波和SV波对圆孔和椭圆孔的散射而引起的动应力集中。

Finally examples of P wave and SV wave scatter against circular hole and ellipse hole are discussed .

轴力作用下TT管节点应力集中系数的参数公式

Parametric equation of stress concentration factor for tubular TT-joints subjected to axial loads

界面含裂纹圆环形衬砌对SH波的散射及动应力集中

On the Scattering of SH-Wave by Interface Crack and Circular Cavity near the Interface

利用ANSYS有限元软件对半无限体表面球形和半椭球形凹坑的三维应力集中系数进行了计算，该方法简单易行，省时省力；

The three dimensional stress concentration factor of half infinite solid with surface spherical or half ellipsoidal notch is studied with the ANSYS software .

而Fe，Cr等元素会与Al，Si形成粗大的杂质相，引起局部应力集中，导致材料塑性下降。

Fe , Cr and other elements react with Al and Si forming coarse impurity phases thereby the stress concentration and decrease in the ductility are caused .

底板临界破坏深度为5m；应力集中系数为1.25。

The floor critical failure depth is 5 meters and the stress concentration factor is 1.25 .

用各向异性有限单元法对Cu三晶体中的三晶交点在弹性阶段应力集中特性进行了计算分析，与数值解法进行了比较，证明了方法是可行的，计算结果是可信的。

By using the finite element method of anisotropy , the characteristics of stress concentration during elastic stage have been analyzed and calculated . The results are compared with the numerical believable .

利用复变函数和波函数展开法，对稳态SH波在含有圆形孔洞的无限弹性压电介质中的散射与动应力集中问题进行研究。

Scattering of steady_state SH_waves and dynamic stress concentration are studied with circular holes in piezoelectric medium under incident antiplane shear wave loading .

T6热处理后，由于Si粒子的球化导致Si相/α-Al基体界面间应力集中的减小，故拉伸性能显著提高。

After T6 treatment , tensile properties increase significantly , due to the spheroidization of silicon particle and consequently the reduction of stress concentration at silicon / eutectic matrix interface .

结果发现ABS依用量不同分别以颗粒或聚集体分散在PVC连续相中，在拉伸过程中，ABS粒子产生变形并作为应力集中体引发银纹。

The results showed that ABS dispersed in PVC continuous phase as particales or aggregates with its various dosages . In the tensile course , ABS deformed and initiated crazes as stress concentrator .

研究界面上的圆形衬砌结构对平面SH波散射与动应力集中问题。

This paper provides a new method for analyzing scattering and dynamic stress concentration of plane SH-waves by interface circular cavity with lining by means of Green 's function .

因此促使弹性体增韧剂TPU能够更均匀的分散在基体树脂中，充当应力集中点耗散冲击能。

Thus , the toughening agent can be dispersed homogeneously in the matrix which become the stress concentration to make the impact energy exhausted .

在此基础上，以减少应力集中为主要目标，对拐轴不合理的结构提出了改进意见，再利用ANSYS软件对改进后轴结构进行了进一步的有限元分析，验证了改进后轴结构的合理性。

Based on it , aiming to reduce stress concentrate , improved measure is brought forward , and ANSYS software is used to do further finite unit analysis and configuration of the axle after amelioration is proved rational .

进而建立电子束焊接件的SN曲线与pSN曲线，并对当量应力集中系数法的合理性进行了检验。

Then , the S N and p S N curves for the welded specimens were established . The equivalent K t method was proved reasonable .

研究了含偏心和双椭圆形孔洞与半圆形凸起对瞬态SH波的散射和动应力集中的问题。

Our analytic works in concrete are mainly as follows : Scattering of dynamic SH-wave and dynamic stress concentration problem are investigated by eccentric and double elliptical cavities in the whole space .

试验结果表明，粘贴GFRP片材可以有效地提高梁的抗弯承载力，片材锚固区由于应力集中可能发生锚固粘结破坏，锚固区采用U形箍可以有效地防止锚固破坏。

The test results show that the bearing capacity is quite increased due to the existence of GFRP sheet . The local bonded failure may be caused by the stress concentration at the end of GFRP sheet .

对K型节点在承受基本载荷作用下的应力集中系数进行了数值和试验分析，得到了各种基本载荷作用下K节点沿着焊缝处应力分布情况和极值应力点的位置。

In this study , numerical and experimental analyses of the SCFs of tubular K-joints subjected to basic loadings were conducted . The stress distributions along the weld toe and the corresponding locations of the peak SCF values of the K-joints subjected to different basic loadings were obtained .

本文在线弹性范畴内，建立了求解半无限压电材料中界面附近圆孔结构对SH波散射与动应力集中问题的解析方法。

An analytic method based on the theory of linear elasticity is developed for the problem of scattering of steady SH-wave and dynamic analysis on a piezoelectric medium with a cavity near the interface in this paper .

结果表明，本文求得的应力集中因子与Fukuda和Chou的结果相当接近，从而证实了本文模型和方法的合理性和正确性。

The results show that the present calculating stress concentration factors very coincide with Fukuda and Chou 's results , thus verifying the reasonableness and correctness of the present model and methods .

本文探讨了偏心载荷柱侧边V形切口附近应力集中对柱承载能力的影响，并提出了一种简便的计算方法，其计算结果比较符合实际。

In this paper , an approach is made to the influence of stress concentration in the vicinity of loaded column side V-notch on its load bearing ability and furthermore a simple calculation method is put forward , which gives the calculated results in good agreement with practice .

利用复变函数法、波函数展开法以及移动坐标技术求解了具有覆盖层的圆孔和圆柱形夹杂在SH波作用下孔边与夹杂周边动应力集中问题的解。

The solution of the dynamic stress concentration of SH-wave by a subsurface circular cavity and circular inclusions in a layered elastic half-space was solved based on the complex function method , wave functions expansion method and moving coordinate .

结果表明，采用FGH95时，涡轮盘应力集中区域的应力值与GH169基本相当，但应变幅值减小。

The results show that the stress distributions are similar , however , the strain amplitudes of FGH95 component is smaller .

研究表明，Cu-Al-Ni合金大的弹性各向异性因子，导致变形时在晶界处形成应力集中，引起晶间断裂。

Researches have shown that stress concentration formed at grain boundary and rupture along the boundary when deforming , which resulted in the large elastic anisotropy factor of Cu-Al-Ni SMA .

与传统的金属结构加固方法相比，FRP加固金属结构技术具有许多突出的优点，如不会导致严重的应力集中、不会产生残余应力、施工方便、维护费用低等。

In contrast to the traditional retrofit method for repairing damaged metallic members , the use of FRP composites emerges as an alternative strengthening method and there are several advantages , such as without stress concentrations , no residual stress , easy to construct and low maintenance cost .

本文采用有限元法研究近场双圆形孔洞、圆环形衬砌对瞬态SH波的散射和动应力集中问题。

The scattering problems and the dynamic stress concentration problems of SH-wave by double circle cavities , and circle lining in near field are investigated in this thesis by the method of FEM . There are two problems in simulating SH-wave issue by finite element method .

管节点的疲劳寿命通常由S-N曲线方法确定，该方法的使用依赖于对节点应力集中系数和应力分布的准确计算。

Generally , the fatigue life of tubular joints can be estimated by referring to S-N curve method which depends on the accurate prediction of stress concentration factor ( SCF ) and stress distribution for tubular joints under general load conditions .