critical crack meaning in Chinese
临界裂缝
Examples
- Aiming at the deficiencies in the ctod criterion applied to analysis of critical crack propagation , a new fracture criterion is established
针对ctod准则在混凝土坝裂缝失稳扩展分析中的不足，提出了一种裂缝失稳扩展新判据。 - ( 3 ) the methods of detecting sub - critical propagation of cracks in concrete dams are explored by use of grey system theory , motion stability theory and catastrophe theory , and three criteria for sub - critical crack propagation are given
( 3 )采用灰色系统理论、运动稳定性理论和突变理论，研究了混凝土坝裂缝亚临界扩展识别方法，给出了三个裂缝亚临界扩展判据。 - Total life of pm superalloy turbine disks can be divided into three parts : the crack ( near the inclusion ) initiation life , the life from the initial crack expanding to the visible crack ( 0 . 78mm ) , and the life from the visible crack expanding to the critical crack
提出了含夹杂粉末高温合金涡轮盘寿命分三个阶段的概念，即：夹杂附近初始裂纹的孕育阶段、初始裂纹扩展到可见裂纹( 0 . 78mm )阶段(裂纹扩展第一阶段)以及从可见裂纹扩展到临界裂纹阶段(裂纹扩展第二阶段) 。 - The experiments showed that the cracking process of such restrained beams in this paper can be divided into three phases , that is , formation of the fanning zones , initialization and development of splitting cracks along longitudinal reinforcement , and accelerating development of the critical crack and / or cracks ( diagonal , flexural ) . during the last two phases , it was observed that further opening of some cracks led to some
研究结果表明，钢筋混凝土有腹筋约束梁的裂缝开展过程大致可分为扇形区逐步形成、劈裂裂缝出现和发展、最终临界裂缝（斜裂缝或弯曲裂缝）加速发展至破坏等阶段。在后两个阶段中存在某些裂缝发展减弱同时某些裂缝迅速开展的“此消彼涨”的现象。 - The critical crack and stress put forward provides theoretic foundation for monitoring portal machine . 3 . applying steady theory of board , studying the problem of early curvature , flexibility model , welding remaining stress , elastic transmutation and brace condition and so on , conclude that structure of beam is primary place where metal structure of portal crane lose stabilization and the break of main beam is result of losing partial stabilization of main board
文章提出的界限应力和临界裂纹对于港口机械的监测提供了理论依据； 3 、运用板的稳定理论，探索了作为薄壁构件的门机金属结构在失稳破坏中所涉及到的初曲率问题、弹性模量问题、焊接残余应力问题、弹塑性变形问题以及支承条件问题等，得出了门机金属结构发生失稳破坏的主要部位为臂架结构，且主臂架的折断是由于受压翼板局部失稳引起整体破坏； 4 、探讨了焊接对结构承载的影响。