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1)  crack tip
裂尖
1.
 The fracture behavior at crack tip on a steel specimen of 16MnR is analyzed by means of 3PB experiments of pre-cracked specimens and FEM calculation.
结果表明,在载荷达到某一临界值时,微裂纹在裂尖处形核、扩展,随后又被钝化,随着载荷的增加,这一个过程一直重复着。
2.
The finite element method is used to study the stress distribution around the crack tip.
通过对实验中试件裂纹的扩展过程及开裂角cq等的分析,结合有限元法对裂尖应力场进行了研究。
3.
Stress distribution around the crack tip and the lig ament between the two crack tips has been studied.
通过对裂尖及两裂尖之间韧带区域的应力场的分析,发现增加试件高度或缩短加载点与裂纹面的距离将更有利于四点剪切加载下砼的Ⅱ型破坏。
2)  tip-splitting
尖端分裂
3)  crack tip
裂纹尖端
1.
Damage analysis of crack tip zone in metal sheets;
金属板材中裂纹尖端区的损伤分析
2.
Research of crack tip damage for metals material;
金属材料裂纹尖端损伤研究
3.
The electromagnetic stress on the crack tip in metal plate with strong current;
导电薄板内裂纹尖端区域的电磁应力
4)  crack-tip film
裂尖膜
5)  Tip Splitting
尖端开裂
1.
Dendrite tip splitting and primary spacing adjustment mechanism of Al-Cu alloy during directional solidification;
Al-Cu合金定向凝固枝晶尖端开裂及间距调整机制
6)  tip crack
搓丝尖裂
1.
The observations by optical microscope and scanning electron microscope show that the cold -drawing fracture of ML15 steel used for nail is mainly induced by the oside inclusions in the material;The tip crack is not only relevant to the ocide inclusions, but also concerns with the freecementite formed by inappropriate teat treatment,the higher annealing temperature and the longer time.
经光学显微镜和扫描电子显微镜观察结果表明,干壁钉用ML15钢冷拔断裂主要因材料中氧化物夹杂的大量存在所致;搓丝尖裂除与材料中氧化物夹杂存在有关外,还与热处理不当,退火温度偏高,时间较长而形成游离渗碳体有关。
补充资料:裂纹尖端张开位移
分子式:
CAS号:

性质:在外载荷的作用下,裂纹尖端两表面间的张开位移。用符号δ表示。由于在弹塑性条件下,已得到δ与工作应力σ(或应变ε)以及裂纹尺寸a(裂纹的半长)之间的关系,因此它是弹塑性断裂力学中的一个重要参量。 

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