stress concentration factor

the cross groove model, mid-position groove model and edge pit model, are established, and by using the results of finite element calculation with the plane model and the relevant model ratio factor and flange influence factor, the equations of stress concentration factors for three groups of models of flaws on the most critical part of the wrench square transition area are worked out.

在常出现缺陷的部位建立了横向凹槽、中间凹坑和边棱凹坑三组有代表性的缺陷模型，利用有关文献给出的平面模型的有限元法计算结果以及平面模型与轴对称模型间的模型比因数和凸缘影响因数等，求得方凸过渡段的最危险部位三组不同缺陷模型应力集中因数表达式，用三维趋势面描绘了应力集中因数的变化规律，求得缺陷容限方程，绘制了典型的容限图，为有缺陷杆的修复使用和判废提供了理论依据。

Firstly,inspecting the width diameter ratio,the mesh density,the pressure as well as the hole size inpluence on the stress concentration factor,we found the stress concentration factor is only connected with the width diameter ratio,we use least square method to obtain the formula for calculatin.

首先考察宽径比、网格划分密度、施加载荷以及孔的尺寸对应力集中因数的影响,发现应力集中因数只与方板的宽径比有关;然后采用最小二乘法,拟合得到计算应力集中因数的公式;最后,我们对该公式进行验证,发现误差较小,基本可以满足工程需要。

From the solution of these equations, the stress concentration factors(SCF) were evaluated for the high and low modulus fibers and mat.

通过建立适当的计算模型,利用二维弹性力学精确解和付氏变换法,建立问题的奇异积分方程组,通过求解方程组,计算高、低模量层和基体层的应力集中因子,计算结果对"混杂效应"作出了理论解释,并与一般采用的Shear-Lag理论计算结果作了比较,本文结果更精确、合理,可应用于层内混杂复合材料的设计。

A completely overlapped tubular joint specimen was tested under lap brace axial loading,in-plane and out-of-plane bending to determine the strain and stress concentration factor(SNCF and SCF) at the intersection of members.

通过对实验所得应变集中因子和现有的T/Y管节点应力集中因子参数方程进行比较,结果显示,利用现有的T/Y管节点应力集中因子参数方程来进行完全叠接管节点的疲劳设计是不合理的。

The notion of maximum stress concentration factor is introduced to describe the stress field of crack tip simpli.

引用一种所谓的最大应力集中因子的概念,对Ⅰ-Ⅱ复合型裂缝前缘应力场进行了简化描述。

The dynamic stress concentration factor is determined by using time-distributive function of energy density,and the corresponding procedure is provided.

3 m方孔的弹性板,在正压和负压三角爆炸载荷作用下的应力响应进行了分析,利用能量密度时间分布函数(TDFED)确定了动应力集中因子,并给出其计算步骤。

The dynamic stress concentration factor is determined by using time-distributive function of energy density,and the emphasis is placed on discussing the effect of two parameters on the result :one is the time step used in the calculation and the other is the time intervel during whic.

3 m方孔的弹性板,在下三角爆炸载荷作用下的应力响应进行了分析;利用能量密度时间分布函数(TDFED)确定了动应力集中因子,重点讨论了时间步长和采样时间间隔对计算结果的影响。

A simple and effective approach based on time-distributive function of energy density was developed to calculate the dynamic stress concentration factor.

3m方孔的开孔板和无孔板对应点在两种下三角爆炸载荷作用下的应力响应进行了分析;由开孔板和无孔板边对应点的主应力时程曲线,对提出的能量密度时间分布函数的绝对值平方进行变上限积分,按其比值确定动应力集中因子,该方法简单易行。

Influence of the geometric parameters of slotted bar on stress concentration factor at prefabricated V-shaped groove bottom of the bar surface;

棒料几何参数对其预制表面V型槽槽底应力集中系数的影响规律

Assess the method applicability of calculating stress concentration factor for K-joints;

K型管节点应力集中系数计算方法适用性探讨

Prediction of the Stress Concentration Factors of the Nozzles on the Internal Pressure Cylinders;

内压筒体开孔接管结构应力集中系数预测

Parametric Equations on Stress Concentration Factor of Completely Overlapped Tubular Joints under Axial Loading

轴向力作用下完全叠接管节点应力集中因子的参数方程

Estimation of quality factor from CMP gathers and its application

共中心道集中品质因子的估计及应用

Genotypic Difference in Arsenic-Accumulating Ability and Their Reaction to Environmental Factors in Pteris Vittata;

蜈蚣草富集砷能力的基因型差异及其对环境因子的反应

The effects of granulocyte-colony stimulating factor on the expression of cytokines in systemic inflammatory response syndrome (SIRS)

粒细胞集落刺激因子对全身炎症反应综合征中细胞因子的影响

Application of factor analysis in evaluating of business competing ability;

因子分析在企业竞争力评价中的应用

geometric elastic stress concentration factor

几何弹性应力集中系数

You need to be alert, with your senses sharp.

你应集中精力，全神贯注。

Factor analysis method for performance evaluating of central city competitiveness;

因子分析在中心城市竞争力绩效评价中的应用

stress corrosion threshold intensity factor

应力腐蚀界限强度因子

Because of this concentration stress is high and is relieved to a certain extent by elastic deformation.

由于接触的这种集中，应力很高，并且因弹性变形而有某些程度的减

Application of factoring theorem in analysis of CIMS network reliability

因子定理在计算机集成制造系统网络可靠性分析中的应用

Clinical Application of Recombinant Colony-stimulating Factor(rhC-CSF)in Hematological Patients

重组人粒细胞集落刺激因子在造血系统疾病中的应用

Study and Application for Agro-Ecological Logging System in Water-saving Study of Rice;

水稻节水研究中生态因子数据采集系统的研究及应用

The Factor Analysis Model s Application in the Appraisal of Enterprise Synthetical Competitiveness;

因子分析模型在评价企业综合竞争力中的应用

Application of factor Analysis in the Evaluation of Comprehensive Performance of General Economic force in Suburban Areas;

因子分析法在县域综合经济实力评测中的应用

The Factor Analysis in International Automobile Competitiveness Analysis;

因子分析在国际汽车产业竞争力中的应用

Analysis of Acceleration Factor Models of Thermal Cycle for Environmental Stress Screening

环境应力筛选中的温度循环加速因子模型分析

Finite Element Analysis of the Stress Intensity Factors in Contact Problems

接触问题中应力强度因子的有限元分析