incipient crack
英 [ɪnˈsɪpiənt kræk]
美 [ɪnˈsɪpiənt kræk]
发裂；起始裂纹；发纹
双语例句
- Research on Ductile Incipient Crack by Using Ultrasonic Rayleigh Waves
用超声瑞利波研究延性启裂 - The paper al-so obtains the formulas to draw the second power parabolic Mohr envelope, to decide the crack form of the coalbed from hydraulic fracture, to calculate the incipient crack angle and some related conclusions.
文章还得出了目的层煤岩Mohr断裂准则二次抛物线型包络线，煤层水压致裂裂缝形式判断，裂缝开裂角方位的计算公式以及有关结论。 - So the incipient crack extends rapidly and results in piercing through the tool joint at last.
这些钻杆接头因热处理工艺不当而具有回火脆性，以致接头材料抗裂纹扩展能力降低，二次淬火层产生的裂纹乃迅速扩展，最终引致钻杆接头的刺穿。 - This paper deals with the research and discussion of the mechanical properties of coal, the condition of developing crack, the form of crack and the incipient crack angle by hydraulic fracture on the basis of the foundational theory.
本文对煤岩基本力学性质、煤层水压致裂裂缝形成条件、裂缝形态以及裂缝开裂角方位等基本理论进行了研究与探讨。 - This method is used to evaluate the condition of the key equipment of an oil refinery, and it evaluates an abnormal condition of the equipment correctly in time and contributes to a successfull diagnosis of the incipient fault of a bolt crack.
将该方法应用于某炼油厂关键设备的运行状态评估中，及时、正确地评价出设备状态异常，为成功诊断出螺栓裂纹的早期故障提供帮助。 - Then the incipient cracking criterion, the stable and unstable criteria of crack propagation are established in accordance with the non-equilibrium thermodynamical stability, and the direction of crack propagation is indicated.
再根据非平衡态热力学稳定性建立起起裂判据、裂纹扩展的稳定和失稳判据，并指明了裂纹扩展的方向。