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- dynamic stress wave 动态应力波
- The plane-section assumption was not congruous in low strain dynamic tests on pipe piles,so the propagation of stress wave couldn't be expressed by 1D wave equation. 管桩低应变检测时,平截面假定并不满足,应力波的传播不能简单地用一维波动方程描述。
- Computational examples are presented, and the influence of wave number and wave incidence angle on dynamic stress concentration factor (DSCF) is discussed. 通过算例给出了浅埋圆孔动应力与入射波数、入射波角度的变化规律。
- Dynamic stress attenuates slowly with distances and has a large value. 动应力随距离衰减速度慢，量值大；
- The dynamic stress intensity factor (DSIF) of the single-edgedcracked specimen of PBX was computed by FEM, the results indicate thatthe DSIF is determined by the material elastic wave propagation velocity. 根据低应变率范围PBX在不同应变率和不同温度拉伸下的实验结果，将修正的Ramberg一osgood进行改进，结合Johnson一Cook模型的分析思路，建立非线性本构模型描述不同应变率及温度拉伸下PBX的力学行为。
- The paper analyses the stress wave propagating in a variable section bar using HONDO finite element computer program . 利用HONDO有限元程序对应力波在变截面杆中的传播进行了分析。
- A dynamic strain gage is developed for dynamic stress test at900℃ of turbine rotor blades of an aeroengine. 为了对某型航空发动机涡轮转子叶片在900℃温下进行动应力测试,研制了900℃态应变计。
- Acoustic emission (AE) is stress wave produced when the materials are distorted, or under the outside load. 众所周知,声发射(AE)是材料在受到形变或外力作用时,迅速释放能量而产生的瞬态应力波,是进行结构诊断的重要依据。
- The mechanism of spallation is analyzed as a result of the interaction of the unloading wave and reflected stress wave. 分析了层裂机制，得出靶材是在卸载波及被反射的压力波的共同作用下发生层裂;
- 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 paper analyzes the reasons for emulsion explosive's passivation by the action of blasting stress wave. 文中分析了爆炸应力波作用致使乳化炸药钝化的原因。
- It was concluded that the impact velocity and peak dynamic stress under the coplanar impact is quadratic relationship. 从结果可以看出：在共面冲击下，其动态峰应力和冲击速度之间是二次线性关系。
- It is shown that the irregularity of the joint surface apparently affects the stress wave transmission. 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。
- This paper presents a signal de-noising method using wavelet analysis in stress wave detection. 介绍了一种适合于管道应力波检测的基于小波变换的去噪方法。
- Intelligence: With compaction control and a system that reacts instantly to the behaviour of the soil under dynamic stress. 智能化:带有压实控制系统及一个实时对在动态压实下面的土壤状况进行反应的系统。
- The interreaction between the weight hammer and the explosive sample is analysed making use of the stress wave theory. 从刚体动力学观点将这种相互作用简化为二阶系统,可得到一组关于应力、应力率和应力脉冲宽度的表达式。
- The relationship between differently composited stiffness of disc-spring cap and pile drivingpenetration and dynamic stress of pile are studied in this paper. 本文研究了碟簧桩帽的不同组合刚度与沉桩贯人度和桩身动应力的关系。
- Structures, cutting mechanism and stress wave theory of the tunneller a re presented and analyzed. 文章对这种掘进机的结构、截割机理及应力波理论进行了介绍和分析。
- In this paper, the dynamic stress intensity factors of a crack at bima-terial interface are computed by particular solution boundary element method. 本文利用动力特解边界元法和应力外推法相结合求应力强度因子的方法,计算异弹模界面裂缝在瞬态荷载作用下的应力强度因子时程反应曲线。
- 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。
