用单边预裂纹拉伸试样测定了焊接接头各部位的应力强度因子K1值。
The stress intensity factors K1 of various position of welded joint were measured by single edge precracked tensile specimen.
现代地壳应力值高，构造变形速度快，地震活动强度加剧，地热流异常明显。
Present crustal stress values are high, structural deformation rate is fast, intensity of earthquake has an obvious increasing trend, and terrestrial heat flow anomaly is very obvious.
分别以应力分析仪和显微硬度仪测试两组试件的挠曲强度和硬度值。
The flexural strength and hardness of the specimens were tested with an instron testing machine and a microhardness tester.
结果表明动态应力强度因子的最大值在加载时间上有滞后性现象，它的最大值随厚壁筒尺寸增加而增加。
The result indicates that the maximum of dynamical stress intensity factor arrives behind the load time and increases with the size of thick wall cylinder.
利用此式能较方便地计算出带裂纹机架的应力强度因子值。
With this formula the intensity factors of the rollhousings with a crack in the corner can be evaluated conveniently.
介绍了在寻找全息干涉条纹与应力强度因子之间关系所作的研究，导出了干涉条纹最大值与应力强度因子之间的定量关系式。
The research works on the relationship between interference fringes and the factor of stress intensity are introduced. The quantitative expression of this relationship has been found and introduced.
结果表明，计算应力和试验值吻合较好，支板的静强度可满足要求，有必要寻找引起故障的其他原因。
The results indicate that the calculation stress agrees with the experimental data and the static strength of the support can meet the requirements. It is necessary for searching other reason.
利用裂纹尖端的奇异元和线性元插值模型，给出了扭转刚度和应力强度因子的边界元计算公式。
Using the interpolation models for both singular crack tip elements and other crack linear elements, the boundary element formulas of the torsion rigidity and stress intensity factors were given.
并且给出了相应应力比下普通钢筋的疲劳设计强度建议值。
Then recommended values in fatigue strength design of ordinary steel bar are proposed.
我们已能够通过比较经历过常规应力解除芯片来确认被改进芯片强度的平均、最小、最大值。
We have been able to confirm that average, minimum and maximum values for die strength could be improved compared with die that underwent the conventional stress relief.
此值被用来比较材料的强度，但是当设计计算时，要用一个安全系数，使工作应力低于比例限制。
This value is used to compare the strength of materials, but a safety factor is applied when making design calculations, to bring the working stress well below the limit of proportionality.
计算UPPC梁(板)的抗弯强度，关键是确定构件在极限承裁能力时无粘结预应力筋的极限应力值。
The key of calculating flexure strength of UPPC beam is to determine unbounded prestressed tendons ultimate value when the components are under their ultimate load ability.
通过三维边界元计算分析表明，切槽宽度越大，无量纲应力强度因子的标定值就越大；
Our 3D BEM(Boundary Element Method) calculation shows that the larger the notch width is, the bigger the error makes for the dimensionless stress intensity factor.
研究表明，不同地质时期应力强度不同，应力的方向和大小都有变化，认为应力值由老到新呈增大趋势。
Study indicates that the intensity, direction and magnitude of stress vary in different geologic periods. The stress values show a trend of increase from the old to young formations.
设计要求、强度设计值可转换为许用应力设计值。
Strength Design values may be converted to Allowable Stress Design values.
结果表明：最大应力值接近铝合金车轮的强度极限，充分利用了材料，有效的减轻了重量，应力分布更加合理。
Therefore, this design makes material sufficiently used, the weight of road wheel effectively lightened. at the same time, stress distribution is more reasonable.
并讨论强度参数、峰值应力差与粒度分维值的关系。
Relationships among strength parameters, peak stress difference and fractal dimensions of granularity were also discussed.
主梁下挠变形的主要原因是受热引起的最大复合应力超过许用值，达到了屈服极限值，强度不满足要求。
The main reason of the main beam down deflection was that the most complex stress exceeded the admissible value and achieved the yield limit value.
通过实例计算，对比分析了用“三向应力圆”理论与其他几种理论计算的抗挤强度值。
The monotone property of multivariate function proved that the maximum stress strength point exists on the inner surface of casing under the triaxial stress conditions.
反射裂缝裂尖位于面层中且裂缝长度大于某一值时，应力强度因子随着摩擦系数的增加而减小。
The SIF decreases with the friction coefficient rising when the surface crack tip lies in the base and the reflective crack length is more than a certain value.
然后采用有限元数值计算方法对叶片进行静力分析、模态分析及裂纹应力强度因子计算，最后反推出叶片在旋转状态下振动应力值的大小。
Through static, modal and crack stress intensity factor analysis, the vibration stress of blade under rotating state before fracture can be calculated out finally.
达到极限弯曲强度后，应力速率继续增加，弯曲强度值呈减小趋势。
After reaching maximal flexural strength, with the increase in stress rate, the flexural strength decreases instead.
结果表明，钢体上开工艺槽导致焊后残余应力增加，对接头强度不利；钎缝厚度存在一最佳值。
The result showed that notch was disadvantageous to the strength of joints, and the optimal value of filler metal thickness existed.
通过实例计算，对比分析了用“三向应力圆”理论与其他几种理论计算的抗挤强度值。
The formula for calculating the axial stress of casing was discussed with theoretic deduction and calculation methods.
用数值结果和图表阐述了在非均匀性参数不同值情况下应力强度因子与平行裂纹间距的关系。
Numerical results and figures are obtained to illustrate the stress intensity factor as a function of the distance of adjacent cracks for different values of the material inhomogeneity.
通过淬火可以获得高强度、高韧性的铝合金，同时淬火后分布于毛坯中的残余应力幅值很大。
Although the strength and toughness of aluminum alloy 7075 can be increased greatly by quenching, this process will result in large magnitude of residual stress.
由迭加原理，可分离出任一单个裂纹面在无限大板中的虚拟应力，从而求出有限或无限域中各条裂纹的应力强度因子值。
By the principle of superposition fictitious stress on any individual crack surface in infinity can be resolved and also its value of stress intensity factor in infinity or finite body is obtained.
根据试验结果，拟合了平均粘结强度表达式，得到了局部粘结应力最大值和混凝土立方体抗压强度的关系。
According to the test consequences, equations of average bond stress, relationship between the maximum local bond stress and concrete cubic compression strength are proposed.
采用应力法计算不同半径处的表观应力强度因子，插值到裂尖圆弧而得。
Apparent stress intensity factor KI with different radius are calculated by the stress method and KI is obtained by interpolation to the crack tip circular arc.
采用应力法计算不同半径处的表观应力强度因子，插值到裂尖圆弧而得。
Apparent stress intensity factor KI with different radius are calculated by the stress method and KI is obtained by interpolation to the crack tip circular arc.
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