sin2

1

Chaotic Threshold of Dynamical System with Nonlinear Term sin α - b sin2 α

具有sinα－bsin2α非线性项的动力系的混沌阈
2

The reason of the 2 θ - sin2 ψ curves splitting is caused by the main stress plane not parallel to the surface of the sample .

2θ-sin~2φ曲线分离是由于主应力平面不平行试样表面而引起的。
3

This article introduces a new measurement method by X-ray . The sin2 ψ method is combined with the grazing incident X-ray diffraction technique to obtain the depth profiles of the residual stress in the ground samples .

本文介绍了一种残余应力测量新方法，该方法联合使用sin2ψ法和掠入射X射线衍射法从而得到残余应力在试件中的深度分布。