巴氏噪声分析(BNA)是一种检测铁磁材料微观应力及金相组织的独特方法。
Barkhausen noise analysis (BNA) is a distinctive measure for testing microscopic stresses and metallurgical structure in ferromagnetic materials.
本文以代表体元作为基本单元，分析了在荷载作用和温度变化时，复合材料层合板单层中组分材料的微观应力。
With, the representative unit as the basis, the microstress of the component materials in the monolayer of composite laminates were analysed under variant load and temperature.
应力敏感性是指骨架应力和孔隙流体压力共同作用产生的压差对微观孔隙结构的影响。
Stress sensitivity means the influence of pressure difference produced by joint working of the matrix stress and the porous fluid pressure on the porous microstructure.
设备的零部件和金属构件发生的损坏，80%是由于各种微观和宏观机械应力集中所导致的疲劳失效。
The fatigue invalidation made by the kind of microcosmic and macroscopical mechanical stress concentrate 80% resulted in equipment part and metal components damage.
结果表明，螺母存在多种铸造及加工的宏观、微观观察缺陷和残余应力过高是螺母断裂失效的原因。
Experiment results showed that the fracture of the nut was originated from a variety of macro defects, micro defects both by founding and machining, as well as high residual stress.
采用宏、微观、扫描电镜、化学分析、应力测定及计算等方法对断裂螺母进行了分析。
The fracture analysis was made by means of microstructure, macrostructure, SEM, chemical composition, stress measurement and calculation.
根据断口的宏、微观形貌，认为油管焊接后未及时消除焊接应力，产生了淬硬裂纹；
The macro and micro analysis of fracture indicates that it produces fracture because it doesn′t avoid welding stress in time.
测量材料微区残余应力的大小和分布，对于研究微观断裂机制具有非常重要的意义，一直是研究的热点和难点。
The measurement of the value and distribution for micro-residual stress in materials was crucial and difficult for micro-fracture theory.
结合受应力作用的岩样切片的微观观察，对应力裂纹、裂纹的动态分叉现象进行了分析讨论。
Then, combining with microscopic observation of rock specimen sections under compressive loads, the phenomena of stress crack and the dynamic branch have been analysed and discussed.
分子动力学模拟和宏微观分析均得到裂纹起始扩展的临界时刻、裂尖应力场和原子平均能量。
When crack starts to grow, the normal stress and average atom energy at the crack tip in atomistic simulation agree well with the results of continuum analysis.
本文对表面微观屈服应力的测量与计算方法及表面变形的应力应变曲线进行了分析研究。
The calculation of micro-yield stress in surface layer and the stress-strain curves of surface layer deformation were studied.
经分析与实体零件的宏观与微观组织观察，此现象是因为还原介质渗入，引起合金体积膨胀而产生引力，造成应力裂纹。
Being the reducing medium, the volume expansion of alloy brings gravitation and crack through analysis and observation of accessory's macro-and micro structure.
射线衍射分析：材料结构的微观分析，如物相定性、定量分析，应力测试，织构分析等。
X-ray diffraction analysis: analyzing the microstructure of materials, such as phase qualitative, quantitative analysis, stress testing and structural analysis.
它的使用可以有效地去除毛刺，降低表面粗糙度值，棱边倒圆，改善表面残余应力状况，提高表面硬度，大幅度减少微观缺陷。
It may be used effectively in deburring, reducing the value of surface roughness, chamfering. improving conditions of surface residual stress and surface hardness and reducing greatly microdefects.
作者从高聚物断裂的微观机理解释了所有实验结果并提出PET -甲胺系统化学应力开裂机理。
Authors inter-prete all experimental results of the work with the molecular mechanism of fracture behaviour of polymers and propose the mechanism of chemical stress cracking of PET-methylamine system.
对失效铝合金管进行了宏观形貌观察、材质检验、 断口微观形貌观察及应力分析。
The failure reason of the aluminum alloy tube was investigated by macroscopic and microcosmic appearance observement, quality of material test, the stress analysis.
根据岩石的破裂机理，本文提出了在单轴压力下的全应力应变关系的微观破裂模型。
According to cracking mechanism of rock, this article presents a model of complete stress-strain under uniaxial compress in minute cracking.
实验测量了断裂阈值曲线，并结合显微观察确定了三种断裂模式：热应力、热减薄和热击穿模式。
The threshold curve was measured and the fracture modes were identified through the observation of microscopy, they are thermal stressing, thermal thinning and thermal puncture.
由计算的应力应变分布形态所展示的亚微观断裂性质与实验观察相符。
The microscopic fracture mechanism revealed by these stress distributions coincides with experimental observations.
在此基础上提出一种新型的损伤参量，该损伤参量结合了剪应力功的概念和疲劳破坏的微观机制。
Based on this a new damage parameter, which combines shear stress work and micro-mechanism is provided.
通过裂纹宏微观形貌分析、腐蚀介质分析、对蒸发塔制造过程质量分析等，证实了独山子石化乙二醇蒸发塔的裂纹属晶间型应力腐蚀裂纹。
By the analyses of corrosive medium and manufacturing process quality, the cracks of glycol evaporators in Dushanzi Petrochemical Company have been confirmed to be intergranular corrosion cracks.
研究结果对理解复合材料热压成型过程中热传递方式、热应力与微观结构的形成机理具有一定的参考价值。
These are of great value in understanding the effects of microstructure development and temperature distribution on the composites manufacturing process.
通过加载和卸载过程中所得到磁声发射强度的变化规律，可用以评估材料中微观损伤及残余应力。
The intensities of MAE have been measured as a function of the stress during loading and unloading, which can be used to evaluate the micro-damage and residual stress in ferromagnetic materials.
桩身应力应变测试是从微观上了解桩基工作性状的基本方法。
It is the basic method of understanding the performance behavior of big diameter driven cast-in-place pile by the test of stress and strain.
微观分析表明，表层硬相化合物的形成及晶粒细化是材料表面耐磨性提高的主要原因，残余压应力的增加也表明抗疲劳性得到提高。
The microanalysis results reveal that some new hard phases are formed and some crystalline grains are refined in the surface layers. All these are the main factors to improve...
微观内应力测量采用了线形近似函数法，宏观内应力测量采用了线形质心法。
The line-shaped approximate function technique is used for macro-stress measurement, whereas the line-shaped mass core technique for micro-stress measurement.
研究了花岗岩板在单轴压缩应力状态下的微观破坏过程。试验主要采用了液压加载台、光学显微镜、同步录象系统以及二次复型技术等。
Progressive cracking of granite plate under uniaxial compression had been investigated by using a loading frame, which could be well equipped with optical microscope and video recorder.
从微观统计的角度出发，通过岩石细观力学的分析、综合，修正前人的研究成果，从而建立温度—应力耦合下的盐岩损伤方程。
Based on previous studies and with the relation of statistical mechanics and fractal rock mechanics, the damage formulation of the coupled damage of temperature and mechanics is deducted.
从微观统计的角度出发，通过岩石细观力学的分析、综合，修正前人的研究成果，从而建立温度—应力耦合下的盐岩损伤方程。
Based on previous studies and with the relation of statistical mechanics and fractal rock mechanics, the damage formulation of the coupled damage of temperature and mechanics is deducted.
应用推荐