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- STUDY ON THE RELATIONSHIP BETWEEN DYNAMIC FRACTURE PARAMETERS AND CRACK PROPAGATION VELOCITY IN GAS PIPELINES 天然气管道动态断裂参数与裂纹速度关系的研究
- crack propagation velocity 裂纹扩展速度
- Crack propagation usually begins slowly. 裂纹的增长常常是开始缓慢。
- Understands AIDS's propagation velocity through the game. 通过游戏了解艾滋病的传播速度。
- Grain size had some effect on the rate of crack propagation. 晶粒尺寸大小对裂纹扩展速率也有影响。
- An automatic 3D crack propagation program based on the FE method was proposed. 摘要提出了一个基于有限元方法的自动三维裂纹扩展仿真系统模型。
- The propagation velocity of nonpolaritons is a monotonically increasing function of temperature. 非极化激元的传播速度是温度的单调增加函数。
- The propagation velocity of ultrasound in patient s shinbone can be achieved by figurin... 与定量超声波在正常胫骨中的传播速度相比较,可以为骨质疏松症提供便捷的诊断手段。
- Crack propagation from the flameout edge can be modeled by considering an edge crack in the martensite surface from flame cutting. 裂纹从烧割边缘的扩展可模拟为一个从烧割处的马氏体表面起始的边裂纹。
- Secondly, the relation between longitudinal wave propagation velocity and resin-bonded stiffness of full length anchoring bolt is simulated. 然后模拟纵波在全长锚固锚杆内传播速度与树脂-围岩粘结刚度之间的关系;
- The short crack propagation is intensifiedby cathode-protection potential in the condition of erosion fatigue. 在腐蚀疲劳条件下外加阴极保护电位促进短裂纹扩展;
- The propagation velocity of ultrasound in patient's shinbone can be achieved by figuring out the time span between emergent wave and echo wave. 根据相关公式,只需计算出超声波发射信号和回波信号的时间差,即可获得定量超声波在受试者胫骨的皮质骨中传播速度。
- The behaviours of fracture, fatigue and fatigue crack propagation in a cast magnesium alloy are systematically studied. 本文系统地研究了铸造镁合金的断裂;疲劳和疲劳裂纹扩展性能.
- Secondly,the relation between longitudinal wave propagation velocity and resin-bonded stiffness of full length anchoring bolt is simulated. 然后模拟纵波在全长锚固锚杆内传播速度与树脂-围岩粘结刚度之间的关系;
- Fracture toughness is a material's ability to resist crack propagation and it is an important property of paper. 断裂韧性是材料抵抗裂缝延伸、扩展的能力,是纸张一种重要的强度性能。
- Further analysis suggests that narrowed river channel increase flood current velocity and silted riverbed slows down tidal wave propagation velocity. 随着涌潮潮头的推进,大量水沙上溯,这对北支和南支上段的滩,漕变化和河口环境有着深刻的影响。
- Criteria for crack propagation of ceramic materials are deduced from nonlocal elasticity theory in this paper. 本文根据非局部弹性理论推导了陶瓷材料的裂纹扩展准则。
- The fatigue crack growth rate is the core for predicting fatigue life by use of fatigue crack propagation(FCP) theory. 疲劳裂纹扩展率表达式是采用疲劳裂纹扩展理论预报疲劳寿命的核心。
- The radio wave propagation velocity is slowed and the ray producing bend but to the asymmetry of the atmospheric medium, The refraction error is produced. 由于空中大气介质的不均匀性使得电波传播速度减慢射线产生弯曲,从而产生折射误差。
- Transgranular fracture. Fracture of polycrystalline materials by crack propagation through the grains. 穿晶断裂:多晶材料裂纹穿过晶粒扩展而断裂。