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- plastic strain measurement 塑性应变测量
- LCF life could be well expressed by plastic strain energy. 低周被劳寿命可由塑性应变能表达。
- The final configuration is identical to that in (a), and the total plastic strain is six atomic spacings. 最后的排列虽与图a一样,但总的塑性应变量是6个原子距。
- The discussion is focused on the relation of ratcheting to the plastic modulus and accumulated plastic strain. 研究中着重讨论了循环棘轮行为与塑性模量和累积塑性应变之间的关系。
- In this paper, we introduce one design of a strain measurement system, which is based on the Fiber-optic Michelson interferer phenomena. 本文基于力学教学实验改革工程背景,详细介绍了一种将基于光纤的迈克尔逊干涉现象的光纤传感器应用于应变测量实验系统的整体的设计过程,其中包括系统设计原理的总体分析,系统的软硬件的设计等等内容。
- A difference of strain measurement data with localized thinning and fracture in FLC determination is compared in this paper. 比较了FLC测量中试样发生颈缩与发生破裂导致的应变测量数据差异,分析了产生这种差异的原因,对于FLC的检测提出了一些建议。
- It can he used to compute many appropriate scalar quantities such as temperature, displacement, effective stress and effective plastic strain. 重点研究此法在焊接的热分析中的应用,得到了有益的结论。
- The thesis introduces Controller Area Network bus into strain measurement, founds strain measurement system based on CAN bus. 本文将CAN现场总线引入到应变测试中,提出了基于CAN总线的应变测试系统方案。
- Low-fatigue properties of 3 hoop was tested.Results show that the density of cyclic plastic strain energy is relative to hoop damage. 测试了3件轮箍的低周疲劳性能。结果表明,循环疲劳塑性应变能密度能够很好地反映轮箍损伤程度。
- Strain measurement is the basis of health monitoring, ac-tive vibraion and shape control in smart materials and structures. 应变测量是智能材料结构实现其健康监测、振动控制和形状控制等功能的基础。
- A new kind of elasto - plastic stiffness matrix of elements is proposed in ferms of the theory of elasto - plastic strain,the finite element method and weighted factors. 介绍一种基于模糊控制的气体流速仪 ,对流速仪的工作原理 ,选用器件 ,加权因子自寻优在系统中的应用进行阐述 ,并给出几种消除干扰的方法。
- There is no simple linear relationship between the gauge s strain and the circuit voltage output in strain measurement with strain gauges,especially in large strain measurement. 利用电阻应变片进行应变测量,特别在大应变测量时,测试电路输出电压与应变片应变并不是简单的线性关系。
- It was shown that the cumulative plastic strain depended not only on the applied cyclic stress and number of cycles,but also on the initial static deviatoric stress level. 在上海地区典型饱和软粘土不排水循环三轴试验的基础上,分析了影响软粘土塑性累积变形的主要因素:循环荷载的作用次数,初始静偏应力和循环加载动偏应力。
- The sensing mechanism of the strain sensor with an embedded fiber Bragg grating was discussed.A strain measurement system with embedded fiber Bragg grating was designed. 讨论了埋入式光纤光栅应变传感器的传感机理,设计了埋入式光纤光栅应变测量系统。
- A series of uniaxial ratcheting tests of T225NG alloy at room temperature were performed and the plastic strain accumulation behavior of the alloy was investigated. 对应力循环下T225NG合金的塑性累积行为进行了试验研究,提出了预测棘轮饱和应变的本构关系及描述棘轮应变演化规律的指数型演化方程。
- The main cause of error of strain measurement using electronic extensometer and its effects on the strength measurement in tensile tests of metallic materials was analyzed. 分析了电子引伸计应变测量误差形成的主要原因,以及对金属材料拉伸试验强度测试的影响,介绍了引伸计使用中的一些经验和注意事项。
- The traditional viewpoint of existing heating process and neglecting melting phenomena in welding results in the error of considering compressive plastic strain in welding. 由于认为焊缝存在加热过程和忽视熔化现象的存在,导致传统观点认为的焊缝存在压缩塑性应变的错误。
- It gives a description about how the variable gain amplifier AD8221 improves CMRR in strain measurement and the ESD protecting measure. 论述电阻应变片直流电桥测量电路的工作原理,介绍可变增益放大器AD8221在应变测量中的应用,并对其提高共模抑制比以及对ESD的防护措施进行阐述。
- Using ANSYS performed the nonlinear finite element analysis of the QFP solder joints under thermal cycles. The thermal fatigue life of QFP solder joint was calculated using Coffin-Manson equation based on the plastic strain. 对热循环加载条件下QFP焊点进行了非线性有限元分析,基于塑性应变采用Coffin-Manson方程计算了25种不同焊点形态的QFP焊点热疲劳寿命;
- The experimental data show that the plastic strain of granite mainly depends on the strain energy of distortion due to deviatoric stress, but not on the strain energy of volume change. 实验结果验证了花岗岩的塑性应变主要与偏斜应力产生的形状改变比能有关,而与体积改变比能的关系不大。