查询词典 ultimate tensile stress

Overpressure when the weak plane tensile stress to ultimate strength of the material was broken.

超压时其薄弱面上的拉伸应力达到材料的强度极限发生断裂。

B. Load the parts to 80% of the ultimate torque or tensile stress.

在零件上加载极限扭矩或断裂拉伸应力的80%。

Determination of ultimate tensile stress parallel to grain using small clear specimens.

无缺陷木材细木条的小试样纵向拉伸抗断裂强度的测定

It has been found that annealing resulted in an increment of the ultimate tensile strength and the flow stress at given strains, while annealing in vacuum contributed much more for the increment than annealing in air.

在真空炉中退火的316不锈钢的表面氧化层分内、外两层，外层由均匀、致密的亚微细晶粒组成；而在空气炉中生成的氧化层结构复杂，和基体的结合强度非常低。

The fatigue test of CFRP bars was carried out at the different cyclic stress, choose the 70% ultimate tensile stress of CFRP bar as the maximum cyclic stress, under the cyclic ratios of R=0.5 （the minimum-to-maximum stress ratio） and R=0 and the fatigue behavior of CFRP bars was investigated.

进行了不同循环应力下CFRP筋的常温疲劳试验，选取CFRP筋70％的极限拉伸应力作为最大循环应力，在R=0.5（最小循环应力与最大循环应力的比）和R=0的应力率下，测量了CFRP筋的疲劳寿命曲线，研究了CFRP筋的疲劳性能。

While under the same anchorage conditions, the ultimate tensile stress in adhesive reinforcement of beam is much smaller than the ultimate stress in pull-out test of block specimen.

将植筋搭接梁的试验结果与块体试件植筋锚固单向拉拔试验的结果比较表明，在相同植筋条件下，梁式试件破坏时钢筋的应力远小于块体试件单向拉拔试件破坏时钢筋的应力。

The experimental results show that 0.2%yield she ar stress, ultimate shear stress and 0.2%yield tensile stress, ultimate tensile stress under torsion-tension combined high strain-rate decrease with increasi ng temperature.

试验结果表明：该材料在高应变率扭-拉复合加载下的名义剪切屈服强度、剪切强度极限和名义拉伸屈服极限、拉伸强度极限均随温度的升高而降低。

Data were obtained and analyzed, including ultimate tensile stress σ(subscript max, breaking strain ε(subscript m, and modulus of elasticity under 0.3MPa stress. Results The ultimate tensile stress of three groups are respectively 6.01±1.43、6.96±0.93 and 12.94±2.03MPa. Samples following GA treatment improve correspondingly, but stiffness of the tissue is increased.

结果 三组极限抗张强度分别为(6.01±1.43)、(6.96±0.93)和(12.94±2.03)MPa，戊二醛处理后的SIS在强度上有较大改善，但是组织变得僵硬；亚甲基蓝光氧化交联处理后的SIS强度改善不是特别明显，柔韧性增强。

The results showed the maximum cyclic stress of CFRP bar should be under 70 percent of ultimate tensile stress; when the maximum cyclic stress decrease 5 percent of ultimate tensile stress, the fatigue life of CFRP bars increase generally 10 times; with the decrease of cyclic ratios, the fatigue life of CFRP bars decrease heavily; for the brittleness, CFRP bar should possess a higher reserve of strength, the margin of safety against failure is a necessity; according to experimental cyclic stress-fatigue life curve, the fatigue behavior of CFRP bar is much better than the fatigue behavior of Q235 steel.

将纤维复合材料用于土木工程结构的研究成果，已应用于实际工程【2j_国外对CFRP筋的一些短期性能以及CFRP筋构件的粘结性能、CFRP加筋混凝土结构的抗弯性能等都做了大量的研究，但对其长国家自然科学基金50278029，50538020和交通部西部交通科技200l431882021资助项目。2OO6年2月13日收到初稿；2006年9月4日收到修改稿。本文联系人：欧进萍，院士期性能如疲劳性能的研究还不够

Compared with conventional rolling,yield stress and ultimate tensile stress in the annealed DSRed AZ31 magnesium alloy sheet were almost the same to the conventional rolling,while the room elongation of annealed DSRed AZ31 magnesium sheet was improved.

非对称热挤压制备的AZ31镁合金板材厚度方向上存在晶粒尺寸梯度，上表层平均晶粒尺寸最小2.50μm下表层最大(3.67μm中间层晶粒尺寸介于两者之间(3.13μm)。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。