然后,以增量方法逐波累计计算残余应变。
Then, the residual strain is calculated by using the incremental method of the cycle-by-cycle accumulation.
在研制材料变形抗力模型时,考虑了残余应变的影响;
Production data are used to develop rolling power consumption and force mathematical models, and the phenomenen of residual strain are thought, in establishing high temp…
终轧温度的降低可引起奥氏体晶粒的粗化和残余应变的显著提高。
The relatively low finishing temperature can lead to the coarsened grain and high retained strain before transformation.
本文提出了考虑残余应变刚度下降的复合材料疲劳累积损伤模型。
The research work in this paper is included following: 1, A fatigue model based on the 'Strain Equivalent Hypothesis' is presented.
用两种会聚束电子衍射(CBED)技术研究了复合材料界面残余应变场。
The residual strain fields at composites interface were studied with two convergent beam electron diffraction (CBED) techniques.
由等幅疲劳残余应变,定义了损伤变量,得到了相应的损伤积累和演化规律。
The damage variable is defined as the residual strain of concrete under constant amplitude fatigue loading, and the law of cumulative damage and its evolution are obtained.
利用形状记忆合金的本构关系,分析了在自由应力状态下的残余应变与温度的关系。
The relationship between the residual strain and the temperature under free stress condition is analyzed by using constitutive relation of SMA.
在循环加、卸载孔隙水压力作用下,残余应变与循环次数的关系符合乘幂负指数关系。
The relationship between the residual strain and cyclic Numbers accords with the power of negative index under the cyclic loading and unloading pore water pressures.
整个加卸载试验过程中,五种混凝土在各次循环中的残余应变随钢纤维含量的增加而降低。
The residual strains of five kinds of steel fiber concrete in each loading and unloading cycle are decreased as the steel fiber content are increased in the whole test process.
研究表明在完全循环加载过程中,由于残余应变的存在,马氏体相变应力随循环增加而减小。
The research results show martensite transformation stress decreases with an increase in cycle due to the residual strain during full cyclic loading.
本文进行了混凝土分别在单、双向侧压作用下受拉变幅疲劳试验,得到了疲劳寿命和残余应变。
Variable-amplitude fatigue tests for concrete in tension under single and bi-lateral pressures are conducted. Consequently, the fatigue life and residual strain are obtained.
通过对身管自紧的残余应力、残余应变及残余位移分析,证明其计算结果与实验结果相当吻合。
It is proved that the computed results are in agreement with the experimental results by analysing the residual stress, strain and displacement of gun autofrettage.
分析了恒载和常温无应力作用对智能筋中光栅残余应变的影响,研究了智能筋的传感稳定性问题;
Through experimental analysis of sustained load and room temperature unstressing action influence on residual strain of smart rebar, sensing stability of smart rebar is studied.
针对钻孔法测量残余应力方法中变形测量存在的误差,提出用光栅应变花测量钻孔所释放的残余应变。
For eliminating the errors in deformation measuring and improving the accuracy in hole-drilling method, this paper presented an optical technique, grating rosette and moire interferometry.
在加工表面上存在着残余应力和残余应变,且残余应力和残余应变随着与刀尖和已加工表面之间距离的增大而减小。
There were remnants strain and stress in the finished surface and the remnants strain and stress decreased with the distance of tool tip and the finished surface increased.
基于不等幅值循环荷载作用下低温三轴振动试验资料,研究了冻结粉质粘土在分级往返加荷情况下的残余应变产生条件。
By means of the experimental data from dynamic triaxial stress-strain test of variable cyclic amplitude for frozen soil, the formative conditions of residual strain on frozen silt clay are studied.
通过光纤光栅波长偏移与温度和固化时间之间的关系测试,得到了树脂固化过程中残余应变的变化历程,成功实现了RTM工艺树脂固化过程中残余应变的在线监测。
The real time monitoring for residual strain induced by resin cure during the RTM process was realized by measuring the relationship among wave deflection, temperature and curing time.
用应变片法测量了层板中铝层的残余应力;
The residual stresses were measured by means of strain gauges.
本文叙述了钻孔法测量残余应力过程中的附加应变。
For the process of residual stresses measurement, strains induced by drilling have been investigated.
标定试验结果表明,测点应变增量与残余应力间存在良好的线性关系。
The experiment results show that the measured additional strain keep a linear relationship with residual stress in the structure.
考虑刚度劣化后,剪切带的弹性应变由弹性剪切模量、损伤变量及残余剪切模量确定。
Elastic shear strain in shear band was dependent on shear elastic modulus, damage variable and residual shear modulus.
应变片钻孔法是工程中应用最广的残余应力测量方法之一。
Strain gage hole drilling method is one of the most popular residual stress measurement methods.
在焊接过程中产生的动态应力应变及随后形成的残余应力,是导致焊接裂纹和接头性能下降的重要因素。
The dynamic stress-strain and welding residual stress during welding are the significant factors which lead to welded cracking and debasement of the joint properties.
研究结果表明,弹塑性有限元分析法预测的寿命偏低,由残余应力可以较准确地确定最大应力应变循环。
The result shows that predicting life by elasticity-plasticity finite element analysis is low and the maximal stress-strain cycle can be calculated accurately by the residual stress method.
在此基础上,对复合材料的拉伸应力-应变曲线进行了考虑热残余应力的有限元预测。
Based on the analyzed results, the tensile stress-strain curves of the composites were predicted with or without the residual stresses considered.
用电阻应变片法测试了管棒材拉拔、矫直和退火过程中产品表面残余应力,研究了管棒材残余应力随工艺参数变化的规律。
The surface residual stress of tube and bar after drawing straightening and annealing, under different processing conditions, were measured by means of resistance strain gauge.
介绍了小孔释放法测量残余应力的原理,给出释放应变与残余应力之间的关系公式。
The theory on the measurement of the residual stresses by the hole drilling method was introduced, and the relationship between the relieved strains and the residual stresses was given.
文中针对铝合金预拉伸厚板的特点,提出了测量其内部残余应力的方法,并运用弹性力学理论进行了理论推导,得到了应力-应变关系矩阵。
The modified removal method for measuring residual stress in thick pre-stretched aluminum plates is proposed and the stress-strain relation matrix is deduced by elasticity theory.
本文根据弹塑性理论基本方程,导出了高水平均匀残余应力场由于钻孔引起的松弛应变与残余应力的关系公式。
When a high level isotropic stress field is disturbed by a drilled hole, a relation of relieved strain vs. residual stress is derived by the basic equations of elastoplastic theory.
本文根据弹塑性理论基本方程,导出了高水平均匀残余应力场由于钻孔引起的松弛应变与残余应力的关系公式。
When a high level isotropic stress field is disturbed by a drilled hole, a relation of relieved strain vs. residual stress is derived by the basic equations of elastoplastic theory.
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