对矩形试样拉伸试验测量的不确定度进行分析,得出了计算其不确定度的公式。
This paper analyzes the uncertainty of tensile test measurement for square specimen and gives formulae to calculate the uncertainty of measurement.
对试样进行了硬度、拉伸强度、断裂伸长率、热老化等性能试验;对老化后的试样表面进行了SEM表征。
Hardness, tensile strength, breaking elongation ratio and aging property of samples were tested and surface of sample after aging was represented by SEM.
本文采用单试样逆光拍照法对延性材料拉伸试验缩颈后的真实应力-应变进行了有效的测量。
The backlight photography with single sample was used to measure the true stress-strain of the ductile material after necking in tensile test.
针对螺旋埋弧焊钢管横向板状试样在拉伸试验时存在的屈服强度误差较大的问题,分析了其误差较大的原因,并提出了相应的解决办法。
To the problem of more yield strength error in SSAW pipe transverse strip specimen tensile tests, analyze the reason of the error, put forward corresponding solving method.
对6063铝合金试样在不同应力三轴度和不同应变率下进行拉伸试验,得到了该合金在这两种情况下的力学性能。
The specimens of 6063 aluminum alloy are tensioned under different stress triaxiality and different strain rates, the mechanical properties of 6063 aluminum alloy can be drawn.
本论文通过缺口拉伸试样的拉伸试验数据证明了以上关系。
In this paper, the experimental results of notch tensile specimens demonstrate the above relationships.
拉伸试验规定值适用于横向试样。
采用夹头分离速率控制方式对有屈服现象和无屈服现象的试样进行拉伸试验,探讨了试验过程中试样应变速率和应力速率的变化情况。
The change of strain rate and stress rate of samples with and without yielding phenomenon was studied during the tensile test under the control of grip separate rate.
真空热循环试验前后CF/EP层合材料的拉伸性能由电子万能材料试验机完成,本文利用扫描电镜观测试样表面形貌和拉伸后的断口形貌。
The tensile strength and Young's modulus of CF/EP specimens before and after vacuum thermo-cycling were measured by an electrical universal material testing machine.
详细介绍不同宽度的土工网格ce131拉伸试验,包括试样的制备、试验现象的分析以及成果的整理与评价。
Described in this paper are tensile tests of different widths of Geonet CE131. including the preparation of samples. analyses of tests and interpretation of results.
用声发射监测带有不同深度缺口的Q2 35钢试样的拉伸试验,由声发射信号分析判断缺口发生破坏的情况。
The tensile test of Q235 steel samples with notches of different depths and their damages were monitored by acoustic emission technique.
利用高碳钢淬火试样及淬火后充氢试样的拉伸试验,研究了高碳钢淬硬组织对氢和应力的敏感性。
The sensibility of the harden structure of high carbon steel to hydrogen and stress is researched through the tensile test of quenched specimens and charging hydrogen specimens after quenching.
本研究进行了渗硼试样的拉伸、多次冲击以及旋转弯曲疲劳试验,并与未渗硼试样进行比较。
In the present study, tensile and repeated impact as well as rotated-bending fatigue tests were carried out.
结果表明,设置试验机的控制参数、拉伸速度和试样尺寸等均对力学性能测试结果有影响。
The result showed that these parameters were affected by the controlling parameters and tensile velocity of the machine and dimensions of the samples.
分析在硫化橡胶拉伸应力应变性能试验中试样的形状、宽度、厚度、试验温度以及拉伸速度对试验结果的影响。
This paper analyzed the influence of the sample's shape, breadth, thickness, temperature and extension speed on the result of the test when vulcanized rubber's extension performance was tested.
针对高强度低合金铌钒钢板在拉伸试验后出现分层开裂的现象,采用SEM、EDAX进行微观分析,发现试样内部有大量夹杂物存在,这些夹杂物主要含有钙、氧、硫、锰等元素。
The lamellar cracking was found at the specimen of HSLA Nb-V steel plate after tensile strength testing, then the fracture surface of the specimen was studied by SEM and EDAX.
试验结果表明,加入湿法白炭黑超细粉的试样拉伸强度比添加气相法白炭黑者提高了54%,扯断伸长率提高了64%,磨耗量降低了20%。
The results showed that the sample by adding the ultrafine powders of silica aerogel increased the tensile strength 54%, the elongation at break 64%, decreased the abrasion loss 20%.
对45钢力学拉伸试验后试样的内部组织结构及断口的全面分析,认为钢中存在较高含量的氢是造成钢材脆性断裂的主要原因。
The internal structure and fracture features in samples 45 steel after tensile testing is perfectly analyzed in this paper.
通过试验研究了X65、X70级螺旋埋弧焊钢管不同拉伸试样——板状试样和圆棒试样的拉伸性能。
This paper studies the tensile properties of stripe and round bar specimens for high grade(API X65~X70) spiral submerged-arc welding(SSAW) steel pipes.
首先设计了相应的拉伸试样,进而对试验结果进行了对比分析,得到补焊焊缝的极限承载应力,为补焊管道的安全评价提供了依据。
The relevant tensile test specimens were designed and tested; then the test results were compared and analyzed to obtain the ultimate bearing stress. The study provides the basis for...
表中所列拉伸试验规定值适用于纵向试样,弯曲试验规定值适用于横向试样。
Tensile test specified values listed in the table apply to longitudinal samples. Bending test specified values apply to horizontal samples.
力学性能试验结果表明,不加填充材料焊接时,试样拉伸强度仅为母材强度的31.24%;进行原位焊接时,试样强度达到母材强度的50.89%。
The mechanical testing results showed that tensile strengths of samples welded by direct welding is only 31.24% of that of the parent metal, and 50.89% of that by "in-situ" welding.
介绍了金属材料试样制备与拉伸试验结果的相关性。
The relativity of specimen preparation and mechanical testing result was introduced.
试验结果表明:轴向应力低于单轴压缩强度80%时孔道试样在内压下拉伸破裂,压力与轴向应力没有明显关系;
The experimental results show that the cracking pressure for hollow cylinder is not influenced by the axial load when it is lower than 80% of the uniaxial compression strength.
试验结果表明:轴向应力低于单轴压缩强度80%时孔道试样在内压下拉伸破裂,压力与轴向应力没有明显关系;
The experimental results show that the cracking pressure for hollow cylinder is not influenced by the axial load when it is lower than 80% of the uniaxial compression strength.
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