Study about the Fracture Properties of Concrete Using Wedge split Tensile Test 利用楔劈拉伸试验研究混凝土的断裂特性
But an useful conclusion is that when the wedge angle of the matrix is less than a critical angle, the singularity of stress field at the interface end of the specimen in micro-debond test nearly disappears. 但从文献[1]关于微珠脱粘试验研究的结论中可以发现当基体的楔形角小于某临界角度后,微珠试件界面端应力奇异性几乎消失。
Among them, the wedge splitting test is preferred as it might become a promising test standard for fracture energy of concrete. 其中,楔入劈拉试件因其在实际操作过程中的诸多优点而有希望成为测试混凝土断裂能GF的标准。
Experimental Study Using Wedge-Splitting Test on Compact Tension Specimens 楔入式紧凑拉伸断裂试验研究
The measured x-t relation of the shock wave by wedge test and different Lagrangian pressure profiles show that the build up of shock waves in the explosive only partially fulfills the hypothesis of the single curve build up. 本文用楔形炸药样品测得冲击波在炸药内的x-t关系以及不同Lagrangian压力剖面说明:冲击波在炸药内的增长并不完全满足单一曲线增长的假设。
In this paper, according to the bush-burning problem in the application of elasto-metal plastic water pilot bearing of the vertical hydraulic generator, the construction of the bearing is designed with multiple crescent wedge spiral bearing camber Results of field test show that the design is practicable 本文根据立式水轮发电机水导弹性金属塑料轴瓦在应用中存在的烧瓦问题,设计出分段月牙楔螺旋承重面的水导弹性金属塑料轴瓦结构,通过现场运行试验,验证了设计的可行性
Research on Drawing Wedge Test for Sheet Strips 板条拉楔试验的研究
The pulmonary capillary wedge pressure of positive patients rose, at the same time cardiac index fell to the extreme instantaneously after loading in volume-loading test and then they restored to the basic level until 60 minutes. 容量负荷试验阳性者,容量负荷后即刻肺毛血管楔嵌压(PCWP)升高,心脏指数(CI)降低,分别达到极值,60min恢复至基础水平。
These findings indicated that the concentration of plasma ANF were in response to the increases of pulmonary artery pressure and pulmonary capillary wedge pressure during exercise, and suggested that exercise may act as a test to evaluate the endocrine function of the heart. 提示运动时心钠素浓度变化与肺动脉压和肺毛细血管嵌顿压变化有关,提示运动试验可望做为一种评价心脏内分泌功能的方法之一。
So the influence of wedge on determination dynamic fracture toughenss is smaller for shorter wedge correspond with the precision of test was higher. 因而楔形头尺寸越小,对动态断裂韧度测试的影响越小,试验精度越高。
Both types of specimen, three-point bending beam with notch and wedge splitting test specimen are applied to measure the fracture-resistance properties of fiber reinforced concrete in early age. 采用三点弯曲切口梁和楔入劈裂紧凑拉伸两种试验模型,测试早龄期阶段钢纤维混凝土材料的抗裂性能;
However, the actual sound absorption capability of wedge was different from the result that obtained from sound pulse tube test. The sound reflected by the wall could bring the multiple absorption of the wedge, which enhance the capability of the actual absorption. 当尖劈敷设在结构表面时,实际吸声性能与声脉冲管实验中所测试的不同,舱室混响将增强尖劈的实际吸声作用。
Emphases on introduces mechanism and control means of more wedge-strip, torque self-adapted drive framework, simulator. The equipment used synthetically technique about machine, electron, test and control and so on. It is a type machine& electron incorporated production. 重点介绍多楔带小车、扭矩自适应传动机构和模拟假人三部分机械结构和控制方法,该设备综合应用了机械,电子,测控等技术,是典型的机电一体化产品。