1) crack on root of tooth 齿根裂纹2) cracks in tooth surface 齿面裂纹 1. At last,the methods are presented to control cracks in tooth surface. 本文通过对内齿轮缩挤成形工艺的有限元模拟 ,分析了直齿轮成形时齿面裂纹的产生机理 ,并从理论上进行了解释 ,进而提出了防止齿面裂纹产生的方...
tobreaksomething so that it does notseparate, but verythinlinesappearonitssurface, or tobecomebrokenin this way: (使)破裂;(使)裂开;(使)产生裂纹 Astonehitthewindowand cracked theglass.石块击中窗户,打裂了玻璃。 I cracked mytoothas Ifell.我摔倒时把牙齿磕了一道裂缝。
Ballarini R, Plesha M (1987) The effects of crack surface fric- tion and roughness on crack tip stress fields. Intl J Fract 24:195-207The effects of crack surface friction and roughness on crack tip stress fields[J] . Roberto Ballarini,Michael E. Plesha.International Journal of Fracture ...
aOn the fracture surface of the teeth, the crack initiation region and beach marks could be seen clearly with naked eye. It was observed that the fatigue crack originated from destructive pitting and spalling areas in the vicinity of tooth pitch line and propagated toward tooth region of tooth....
aEffects of tooth surface modifications on the transmission error of a helical gear pair and its opimization. Effects of tooth surface modifications on the transmission error of a helical gear pair and its opimization.[translate] a我想我们应该了解一段时间再去你家?可以吗? I thought we should ...
break; check; crack (become fractured; break or crack on the surface only)Troponyms (each of the following is one way to "crack"):check; chink (make cracks or chinks in)fissure (break into fissures or fine cracks)Sentence frames:Somebody ---s something Something ---s somethingSentence...
i.e. at the core of the particle during the lithiation phase and on the particle surface in the following delithiation, consistent with DIS computation[7]. The results show that the surface and internal cracks grow and merge ultimately at the end of delithiation, leading to the complete fractu...
Determining the critical dimensions of a surface crack on a linear pipe is made according to the following scheme: for a known pressure and a given half axis of the crack studied value, considering this value as critical, the critical value of the second half axis can be calculated from the...
Wilson, On the finite element method in linear fracture mechanics, Engineering Fracture Mechanics 2(1-A) (1970) 1–17. Article Google Scholar J.E. Collipriest, An experimentalist's View of the Surface Flaw Problem, The surface crack: Physical Problems and Computational Solutions, American ...
Abstract— The problem of fatigue crack propagation in surface treated specimens similar to gear teeth is analysed. Experimental fatigue tests were carried out on carburized, and carburized and shot peened, specimens. In order to predict crack propagation and to consider the effect of the treatments...