2) one-dimensional hexagonal quasicrystal
一维六方准晶
1.
By introducing the appropriate conformal transformation and using the complex variable function method,the anti-plane problems with an arc or parabolic crack in one-dimensional hexagonal quasicrystals are solved and the SIFs at the crack tip are obtained.
利用复变方法,通过引入适当的保角变换,研究了一维六方准晶中的圆弧裂纹以及抛物线裂纹的反平面剪切问题,得到裂尖处的应力强度因子。
2.
By introducing the appropriate conformal transformation and using the complex variable function method,we study the double infinite coliner dynamics crack of the strip in one-dimensional hexagonal quasicrystals and get the dynamics SIFs at the crack tip.
利用复变方法,通过引入适当的保角变换,研究了一维六方准晶中狭长体双半无限共线快速传播裂纹动力学问题,得到了裂尖处的应力强度因子。
3.
Using the complex variable function method,the anti-plane shear problem of an asymmetrical semi-infinite crack in a strip of one-dimensional hexagonal quasicrystal is solved and the analytic solution of the stress intensity factor(SIFs) for mode Ⅲ problem is obtained.
用复变函数方法求解了一维六方准晶弹性狭长体中含有一非对称半无限裂纹的反平面剪切问题,给出了Ⅲ型裂纹问题的应力强度因子的分析解,所得结果在一些特殊情形下可以退化为已有结果。
3) hexagonal system
六方晶系
1.
Y elastic constants of polycrystalline materials with hexagonal system structure
具有六方晶系结构的多晶体材料弹性常数——Y弹性常数
2.
In hexagonal system, there is 180° secondary rotation twin with(003)as twinning plane and direction as twinning axis.
发现Al4C3相以孪晶方式存在,六方晶系中存在以(003)面为孪晶面,以[001]方向为旋转轴的180°二次旋转孪晶。
3.
Brillouin scattering for hexagonal system has arbitrary rotation symmetry about the 6 fold axis of the system.
指出六方晶系Ｂｒｉｌｏｕｉｎ散射具有围绕晶体六次轴的任意旋转对称性，给出该晶系含体积元转动贡献的散射张量的简洁形式，讨论了压电效应对这种旋转对称性的影响。
4) six-party crystal
六方晶片
5) hexagonal structure nickel powders
六方晶镍
补充资料：方准
1.方形鼻子。 2.方形帽饰。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条