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- crack propagation toughness 裂纹扩展韧性
- 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。
- Addition of activating agent had no obvious effect on fracture toughness of weld metal, but it improved the length of ductile crack propagation. 添加活性剂对焊缝金属的断裂韧性没有明显作用,但对延性裂纹扩展长度有所改善。
- Crack propagation usually begins slowly. 裂纹的增长常常是开始缓慢。
- For straight notch specimen, the crack propagation begins at the corner of the notch and the measured fracture toughness is dependent on the specimen geometry. 直槽切口偏离理想裂纹,裂纹起裂始于切口端部的角点,实测的断裂韧度值偏高且具有尺寸相关性;
- Plane strain fracture toughness (KIc).The critical value of the stress intensity factor (i.e., at which crack propagation occurs) for the condition of plane strain. 平面应变断裂韧性(KIc):平面应变条件下应力强度因子的临界值(即达到该值时裂纹发生扩展)。
- 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。
- The new type of cast steel also has obviously higher fracture toughness and resistance to fatigue crack propagation than the conventional ledeburite cast steel and forged Cr 12 type steel, and retains high wear resistance. 其断裂韧性和疲劳裂纹扩展抗力明显高于传统莱氏体型铸钢和锻造Cr12类钢;
- Abstract This paper studies the fatigue crack growth rate of GDL-1 bainite steel with high strength and toughness in different heat treatment conditions by fatigue crack propagation tests. 摘要 通过疲劳裂纹扩展试验,研究了不同热处理状态下GDL-1型高强韧贝氏体钢的疲劳裂纹扩展速率和疲劳裂纹扩展门槛值,得出了有价值有意义的结论。
- 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。
- 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。
- 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 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.
- 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。
- 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。
- The addition of AlO_2 tended to shorten the period of time for crack initiation, whereas to retard crack propagation. 对钢的应力腐蚀存在双重影响,即促进裂纹萌生,同时又对裂纹扩展起抑制作用。
- The fracture toughness of the h-BN/Si3N4 ceramic composite decreases with increasing h-BN content; however,the reduction extent is not pronounced due to the effect of the h-BN particles on the cracks propagation. 随着h-BN含量增加;h-BN/Si3N4陶瓷复合材料的断裂韧性下降;但由于h-BN颗粒对裂纹扩展的影响;因而其下降程度不大.
- Brittle fracture. Fracture that occurs by rapid crack propagation and without appreciable macroscopic deformation. 脆性断裂:通过快速裂纹扩展发生断裂,没有明显的宏观变形。
- I am well aware that this is a tough job. 我深知这是一件棘手的工作。