在单轴循环加载实验中不断改变平均应力和正弦波应力振幅的实验条件下,研究饱和砂岩和大理岩的动态响应。
By shifting the mean stress and the sine wave stress amplitude, uniaxial cyclic experiments were performed to study the dynamic response of fluid-saturated sandstones and marbles.
应力波与隧道衬砌的相互作用问题为岩石力学的一个十分复杂的问题,到目前为止还没有得到圆满的解决。
The interaction of stress wave with tunnel structures in rock mass is a complex problem, which up to now has not been solved completely.
计算中用应力波传播的加卸载判别准则来决定单元的加卸载状态,对受拉破坏单元进行内部应力调整和应力转移。
In calculation, adopted load-unload criterion of stress wave propagation was to decide load-unload state of element and to adjusts and transfers internal stress for tensile failure element as well.
研究了将功能梯度材料中应力波传播的计算模型应用到土介质中,提出了梯度土介质的概念。
The model of wave propagation in functionally graded material (FGM) is introduced to soil medium, and the concept of functionally graded soil medium is brought forward.
提出了前兆应力波扩展与传播的最小阻力或最短波径定律以及地应力波传播的概略模型。
The law of least resistance or shortest path of spread of stress wave as well as general propagation model of stress wave are given.
考虑了弹塑性应力波传播对屈曲的影响,建立了该问题横向扰动方程。
The equation of lateral disturbance used to analyize the problem is developed by taking into account the effect of elastic-plastic stress wave.
本文借助于应力波传播规律研究了弹性梁板结构在冲击载荷作用下的动态屈曲问题。
The dynamic buckling of elastic structures, such as beams and plates, when subjected to an axial impact at one end, is studied in the present paper based on the theory of stress wave propagation.
利用应力波传播理论探讨了桩基质量检测问题。
The problem of checking on the quality of pile foundations is studied by using the theory of stress wave propagation.
为了解决目前管道流量泄漏监测和定位问题,根据管道泄漏应力波和正常信号的区别,建立神经网络模型。
To solve the leak detection and location problem in pipeline flux, we built neural network model based on the difference of leak wave and normal signal.
在多冲这种动载应力波作用下的零部件大都在多冲的接触表面出现或引发各种缺陷并导致早期损伤失效。
All kinds of defects appear in the surface of components which under the repeated impact load, and the surface defects make the earlier damage and failure.
研究结果表明:节理面不规则结构明显地影响应力波的传播性质。
It is shown that the irregularity of the joint surface apparently affects the stress wave transmission.
在爆炸或冲击荷载作用下,钢板间会引起复杂的应力应变状态的变化,表现在应力波传播比较复杂。
That the complex stress state change is aroused between armor plates under explosive or shock force is expressed by complex stress wave propagation.
借助经典的爆炸力学理论和回归拟合曲线方法,验证了爆炸空腔大小、应力波的应力峰值、应力波的作用时间。
The radium of blasting cavity, stress peak value and action time of stress waves are validated by the theory of classical explosion mechanics and the way of curve regression.
正是由于具有局部特征的应力波传播,引起结构局部或整体发生和生长。
It is for the propagation of longitudinal waves that the buckling of the structures takes place and grows.
利用振动波传播具有的许多独特性质,可以在锚杆表面人工激发应力波来探测锚杆体系内部的结构和性质,以此来判断锚杆的锚固状态。
Utilizing the acoustic wave's characteristics, we can detect the interior structure and quality of the anchor system and, judge the anchorage state by beating the anchor bar's top with a hammer.
应力波测试混凝土桩基础的质量之优点在于不损伤桩基本身,且快速和有效。
The advantage of stress wave testing for concrete pile quality is nondestructive to pile itself. This method is rapid and effective.
因此,研究应力波与裂隙的相互作用,对于研究岩石爆破机理、应力波传播规律以及波的反演——材料的动态特性等有着十分重要的意义。
Therefore the study of interaction of stress waves with cracks will greatly contribute to the interpretation of blasting mechanism, the stress wave propagation and the dynamic behaviour of material.
从应力波表层损伤理论分析了混凝土表层“开坑区”的侵彻特性,提出“简化等效阻力线”的计算方法;
Penetration performance in surface layer of concrete target was analyzed by stress wave damage theory, calculating method base on "simplified equivalent resistance line" was presented.
通过实验工作,对应力波实验技术及数据处理中的若干问题作了探讨。
Based on our experiments, several problems on the test technique of stress waves and data treatment were studied.
对于H68黄铜,随着晶粒尺寸的增大,出现锯齿屈服的临界应变量增大,锯齿波的最大应力振幅减小。
With the increase of the grain size of H68 brass, the critical plastic strain for the onset of serrations increases while the maximum stress amplitude of serrations decreases.
分析了爆破弱应力波作用下中远区裂纹的端部应力场。
Analyzed end stress field of far district slight crackle under blasting dynamic.
根据应力波理论和复变函数方法,建立了求解爆破地震波作用下任意形状洞室动态响应的解析方法。
In terms of stress wave theory and complex function, analytical solution for the interaction between blasting seismic wave and arbitrary shape underground Chambers is deduced.
应用矩阵方法,研究了应力波在弹性杆形部件中的传输特性。
By applying a matrix approach, the stress wave propagating in an elastic bar is studied.
利用广义特征理论导出了应力波传播的特征线和特征关系。
The characteristic lines and characteristic relations are derived by using the generalized characteristic theory.
分析了集中药室爆破时,爆破冲击波和应力波对药室附近岩体的破碎过程及应力波在自由面的反射作用。
The paper analysed the process of smashing rock near a explosion source by shock wave and stress wave and the reflecting action of stress wave on the free face.
利用压电陶瓷技术,设计并制备整体式多阵列压力传感器,并用于爆炸冲击波压应力的测试。
Planar array and monoblock type pressure gauges were designed and prepared by piezoelectric ceramics, which were used to measure pressure of explosive blast successfully.
利用压电陶瓷技术,设计并制备整体式多阵列压力传感器,并用于爆炸冲击波压应力的测试。
Planar array and monoblock type pressure gauges were designed and prepared by piezoelectric ceramics, which were used to measure pressure of explosive blast successfully.
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