动态应力

ANSYS在计算三维动态应力强度因子中的应用

Application of ANSYS in Computing Three Dimensional Dynamic Stress Intensity Factors

基于拉曼光谱仪的MEMS动态应力测试系统

Dynamic Stress Measurement System of MEMS Based on Raman Spectroscopy

动态应力下MOS器件热载流子效应研究

Study on Hot-carrier Effects in MOSFET under Dynamic Stress

当材料的E／ρ值相同时，动态应力强度因子的响应曲线完全相同。

The response curves of dynamic stress intensity factor are the same if the val-ues of E / ρ of materials are the same .

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。

Through bidirectional data interchange between ADAMS and ANSYS , dynamic stress analysis of this elastic mechanism is conducted .

PVDF压电计在动态应力测量中的应用

Application of PVDF gauges to dynamical stress measurements

发现了动态应力场中LDPE和HDPE熔体在动态温度扫描过程中的异常动态粘温关系。

Anomalous dynamic viscosity-temperature relationship of LDPE and HDPE under dynamic stress field was found .

将灰色系统方法理论中的GM（1,1）模型，应用于动态应力集中测试的数据处理，根据应力集中处附近的应变测试值，能方便地求出应力集中处的最大应变值。

Grey model GM ( 1,1 ) is used to obtain the maximum strain in the region of dynamic stress concentration based on experimental data .

采用Biot固结理论和有限单元法，分析了海床的动态应力场与孔隙水压力场。

Biot ′ s consolidation theory and FEM ( finite element method ) are adopted .

结果表明，Al2O3陶瓷为弹脆性材料，其动态应力应变呈非线性关系，在较高的应变率范围内，陶瓷材料的动态应力应变关系是应变率相关的；

It is shown that the tested ceramic is nonlinear elastic-brittle material and insensitive to strain-rates in lower ranges but sensitive in higher ranges .

本文综合利用Laplace变换和Fourier变换，从理论上分析了含有贯穿裂纹的层合复合材料，在动载荷作用下裂纹尖端的Ⅰ型动态应力强度因子；

Using Laplace and Fourier transform , I type dynamic fracture apex mechanical strength factors of composites are analyzed , the composite having penetrating fracture while loaded by dynamic load .

微机电系统（MEMS）动态应力的瞬态特性决定了传统的应力测试系统无法直接满足它的测试需要。

The transient characteristics of the dynamic stress of MEMS ( Micro Electro Mechanical System ) decides that it is hard to be measured directly by using the traditional stress measurement system .

1-3型OPCM传感元件测量OM构件表面动态应力研究某些正交异性体弹性动力学问题

Research on the Detection of the Dynamic Surface Stress of Orthotropic Material Structure with 1-3 OPCM Strain Sensing Units

针对I型裂纹的动态应力强度因子（SIF），推导出适合图像处理的计算公式。

Aiming at dynamic stress intensity factor ( SIF ) of the model I crack , the formula adapting to image processing was deduced .

讨论了分离式Hopkinson压杆装置间接测量混凝土材料动态应力-应变曲线存在的问题。

The problems of Split Hopkinson Pressure Bar ( SHPB ) technique used for measuring dynamic stress strain curve of concrete were discussed .

研究粘弹性胶层中Griffith裂纹在Ⅰ型载荷作用下，裂纹尖端动态应力强度因子和能量释放率的时间响应。

The dynamic stress intensity factor and energy release rate were studied about the Griffith crack in visco-elastic layer under mode ⅰ load .

利用Hopkinson压杆，分别测试了以HMX为基的PBX在老化前后的动态应力-应变曲线。

By the help of Hopkinson bar , the dynamic stress-strain relations of HMX-based PBX with fresh and aged samples are measured respectively .

由贴在试样裂尖附近的应变片确定起裂时间，最终确定起裂时的动态应力强度因子值，即动态起裂韧性KId（σ）。

The fracture time is measured using strain gauges mounted on the vicinity of the crack tip and the dynamic fracture initiation toughness is obtained based on the stress intensity factor history and the fracture time .

研究无限长条板中粘弹性-弹性界面Griffith裂纹在Ⅰ型突加载荷作用下，裂纹尖端动态应力强度因子的时间响应。

The dynamic stress intensity factor was studied about the Griffith crack between elastic and visco-elastic layers in an infinite length strip under impact load .

研究了MOS器件中的热载流子效应，在分析了静态应力下MOSFET寿命模型的基础上，提出了动态应力条件下MOSFET的寿命模型。

The hot carrier effects ( HCE ) in MOSFET are studied in this paper . Based on MOSFET lifetime model of direct current , we present MOSFET lifetime model of dynamic stress .

用热重分析仪（TGA）和动态应力流变仪（DSR）分别测量了聚硫醚酰亚胺热聚合反应过程中转化率和粘度随时间的变化。

Thermogravimetry analysis ( TGA ) and Dynamic Stress Rheometer ( DSR ) were used to measure the conversion and viscosity changing with time during the thermopolymerization to form polythioetherimides .

采用Durbin反演法，将Laplace变换域中的动态应力强度因子转换为时域中的解。

By using Durbin 's inverse Laplace transform method , the dynamic stress intensity factor in Laplace transform domain is transformed into the result in time domain .

冲击载荷下铜基粉末冶金（Cu-PM）多孔材料的动态应力-应变特性研究

Stress-strain Properties of Cu-Matrix Powder Metallurgy ( Cu-PM ) Porous Material under Shock

以热-弹塑性有限元法为基础，采用有限元分析软件ANSYS对T型焊接接头和箱型结构梁焊接过程中的温度场、动态应力以及焊后残余应力进行了数值模拟分析。

And with the finite element analysis software ANSYS , on the basis of elastic-plastic method , the paper makes numerical simulation of the temperature field , dynamic stress and welding residual stress for the T-shape welded joints and box beam structure .

介绍了一种依据高频调制原理设计实现的基于拉曼光谱仪的MEMS动态应力测试系统，该测试系统是一个典型的光机电集成的MEMS测试系统。

A new kind of dynamic stress measurement system of MEMS was revealed , which was based on Raman spectroscopy and high-frequency modulation principle , it was an integrated MEMS meas - urement system of light , mechanism , electricity .

通过对V型切槽爆破断裂成缝机理的分析研究和模拟对比计算，提出了切槽尖端动态应力集中和V型切槽尖端附近区域裂缝生成抑制联合作用的断裂成缝机理。

The Fracturing mechanism under combined action of the dynamic stress concentration on notch tip and the restraint of crack growth in areas near dose to V shape notch tip is presented , according to theoretical analysis and computerized simulation of V shape notching blasting .

双相20Cr钢一维动态应力&应变曲线解析

Decouple of one dimensional dynamic stress strain curves of dual phase 20 Cr steel

用Laplace和Fourier变换将问题化为在Laplace变换域内求解第一类Cauchy型奇异积分方程，并给出了动态应力强度因子和裂纹张开位移的数值结果。

The Laplace and Fourier transforms are used . The problem is reduced to solving a Cauchy singular integral equation in Laplace domain . The numerical results of dynamic stress intensity factors and relative displacements of crack surface are given .

爆破振动危害动态应力比评价方法（DSR）是根据爆破振动实地监测及质点振速预测方程，结合现场损伤破坏调查而求得岩土结构爆破振动破坏判据的一种新方法。

Blasting vibration dynamic stress ratio evaluating method ( DSR ), a new method combining the ground survey to obtain geotechnical structure blasting vibration failure criterion , is based on the result of blasting vibration ground monitoring and particle vibration velocity forecasting equation .

Mg-Li-Y合金及Mg-Li-Nd合金的动态应力-应变曲线都随着应变率的增大而降低，表现为应变率负效应。

The dynamic stress-strain curves of Mg-Li-Y alloy and Mg-Li-Nd alloy decreased with the strain rate increasing and showed the negative strain-rate effect .