1)  stress [英][stres]  [美][strɛs]

2)  stress [英][stres]  [美][strɛs]
n.压力;重要性;应力;重音vt.强调，重读
3)  important application

1.
The important application of the multimedia telecommunication technique;

4)  important strength

1.
Trade unions and laborers in different countries are important strength to boost the sustainable development.

2.
Because of superiority in organization system and special technology,NGO becomes important strength of answering readily public crisis,playing a positive role which cannot be substituted.

5)  major driving forces

1.
The pursuit-of-truth spirit as such constitutes one of the major driving forces and artistic aspirations of the days.

6)  double stress singularities

1.
The stress field near the tip of V notch in a plate with double stress singularities is described,and two methods of determining the double stress intensity factors, K 1 and K 2, which corresponds to double stress singularities are presented on the basis of the isochromatics obtained from the photoelastic experiment.

stress

由载荷、温度、湿度等因素引起物体内部某点处截面内力的集度。其大小和方向决定于所考虑点的位置和截面方向。若过某点任一截面微元ΔS上的内力合力为ΔF，则该点在此截面上的应力σΔF／ΔS  。此应力在截面法线方向的分量称法向应力，在截面内的分量称剪应力。物体内某点不同方向截面上的应力情况称该点的应力状态。物体内任一点的应力状态可由过该点3个相互垂直平面上的9个应力分量σxτxyτxz ,σyτyxτyz ,σzτzxτzy表示（见图）。其中τxyτyx ,τyzτzy ,τzxτxz，故只有6个应力分量是独立的。过该点任一平面上的应力在xyz轴上的分量为：Xlσxmτxynτxz ，Ylτyxmσynτyz Zlτzxmτzynσz ，式中lmn为所考虑平面的法线同xyz轴夹角的方向余弦。应力是确定材料或构件是否会破坏的一个重要力学参量。

 应力分量