Testing research on dynamic stress is the key to solve the cracking problem of large water turbine runners.
开展真机转轮叶片动应力试验研究是解决大型水轮机转轮开裂的关键。
These results confirm the statement that the reason of cracks is not the static stress but the high dynamic stress, so it is possible to optimize the turbine at designing stage.
这些结果印证了动应力值过大是叶片产生裂纹的主要原因，从而为水轮机在设计阶段就进行优化提供了可能。
The expression for calculating dynamic stress concentration factor is presented.
给出了动应力集中系数的计算表达式。
The expressions for calculating the dynamic stress concentration factors are given.
给出了界面处动应力集中系数的表达式。
Finally, the dynamic stress intensity factors of the fast-propagating crack is obtained.
得到了快速扩展裂纹的动态应力强度因子。
The dynamic stress field and the mechanism of the directed fracture blasting are analyzed.
分析和讨论了定向断裂爆破动应力场参数和定向断裂爆破作用机理；
The dynamic strength and dynamic stress-strain curves for sandstone and limestone are given.
给出了灰砂岩、石灰岩两种岩石动态的破裂强度与应力应变关系。
Testing research of dynamic stress in turbine blade is the key for solving the crack of runners.
开展真机转轮叶片动应力试验研究是解决大型水轮机转轮开裂的关键。
According to dynamic stress and load, the stress spectrum and load spectrum which are universal were got.
根据动应力和动态载荷值，获得了具有普遍意义的构架应力谱和载荷谱。
The accurate calculation of complex structure dynamic stress has not been fully solved in structure dynamics.
复杂结构动态应力的准确计算是一个没有圆满解决的问题。
The transient displacement field and the dynamic stress intensity factor at the moving crack tip are obtained.
给出了瞬态的位移场和运动裂纹尖端的动态应力强度因子。
In this paper, we measure and analyze the changes of dynamic stress in human skull brain under impact loading.
通过测定和研究颅脑在冲击载荷下的动应力变化情况。
Scattering of flexural waves and dynamic stress concentration in plate are different from static stress problem.
弯曲波的散射及动应力集中不同于静力问题。
It is for telemetering the vibration frequency, dynamic stress and temperature of turbine blades under dynamic state.
用于涡轮机叶片在动态状态下对其振动频率、动应力和温度进行遥测。
The loading state of specimen is important for calculation of the temporal evolution of dynamic stress intensity factor.
试样的受力状态对动态应力强度因子历史曲线的确定具有重要影响。
This paper presents a simple analytical method solving the dynamic stress response in a solid sphere under thermal shock.
本文提出一种简便的解析方法求解实心球体在热冲击载荷作用下的动应力响应。
The results show that the thickness of pavement layers is a major factor in affecting vertical dynamic stress distribution.
结果表明，路面结构层的厚度是影响竖向应力分布的主要因素。
The tower building of the semi_movable crusher system has been designed and its static and dynamic stress has been analyzed.
对半移动式破碎站上的塔楼进行结构设计和静、动态应力分析。
Coefficients of dynamic stress concentration change with lining aperture, thickness of lining, wave number and type of lining.
介质和衬砌内动应力集中系数随孔径、衬砌厚度、波数变化而变化，且与衬砌性质有关。
Through bidirectional data interchange between ADAMS and ANSYS, dynamic stress analysis of this elastic mechanism is conducted.
通过进行ADAMS与ANSYS之间的双向数据交换，对该喷管弹性机构构件进行了动态应力分析。
This method has reference values in analyzing the dynamic stress in some structure under transient loads such as blast and impact.
本文对于承受爆炸、冲击等瞬态载荷作用下的结构动应力计算也有参考价值。
This method has reference values in analyzing the dynamic stress in some structures under transient loads such as blast and impact.
本文对于承受爆炸、冲击等瞬态载荷作用下的结构动应力计算也有参考价值。
The result shows that the static equivalent stress and dynamic stress are both reduced by 50% or so after the structure being improved.
结果表明，采用改进结构后，静态等效应力和动应力均较改进前减少50%左右。
The influence of the groundwater seepage on soil mass comes to be true through the seepage force (the dynamic stress) on the soil grain.
地下水对土体的渗流作用是通过作用在土颗粒上的渗透力(动水压力)产生的。
Also compare dynamic stress concentrations, the maximal dynamic stress with the static characters and discuss the results of comparison.
另外，对动应力集中系数、最大动应力与静态特征进行比较，并对比较结果进行讨论。
In this paper, a boundary integral equation method is applied to compute the dynamic stress intensity factors of collinear periodic antiplane cracks.
本文采用一种边界积分方程法，计算了共线周期反平面裂纹的动应力强度因子。
The crack-tip dynamic stress intensity factors decrease with the decrease of the crack length and the increase of the functionally gradient parameter.
无论在什么时刻，裂尖处动态应力强度因子随裂纹的长度减小而减小，随板材料的功能梯度参数增大而减小。
A new dynamic holophotoelasticity method is used in laboratory test to study propagation of dynamic stress by blasting subjected to initiative stress.
以最新的激光动光弹为实验手段，对初始应力条件下的爆破应力波的传播过程进行了实验研究。
A new dynamic holophotoelasticity method is used in laboratory test to study propagation of dynamic stress by blasting subjected to initiative stress.
以最新的激光动光弹为实验手段，对初始应力条件下的爆破应力波的传播过程进行了实验研究。
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