... shear normal pressure stress 剪切法向压应力 first normal-stress 第一法向应力差 normal contact stress 单位压力 ...
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first normal stress difference 第一法向应力差 ; 第一常规压力差分
first normal stress coefficient 第一正应力系数
the first normal stress difference 第一正应力差
first principal normal stress 第一主应力
first t normal-stress difference 第一法向应力差
The effect of the first normal stress difference increases the load capacity obviously under the condition of the dynamic load, and it also affects the locus of shaft center.
在动载荷条件下，第一正应力差效应明显增强了油膜压力和承载力，并对轴心轨迹产生影响。
First contact stress and deformation of parts which have normal shapes and simple contacting status are calculated using Hertz formula and finite element method.
首先，运用了赫兹公式和有限元法对外形规则、接触状态简单的零件进行接触应力和接触变形计算。
However, at higher angle of tooth-shaped asperities and under higher normal stress, the failure model II is found, which is in first tension but final shear failure.
在较高的法向应力下，含起伏角较高齿形节理面的非贯通节理岩体可能出现破坏模式II（先张拉后剪切破坏模式）。
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