
By means of the method in works [1], the stress σ_(ij) the residual stress σ_(ij), the intensity of stress σ_i and intensity of residual stress σ_(ij) in elastiepower hardening rotating disk are calculated. It can be seen from this that there is quite different in the distribution of tangential stress σ_θ and the intensity of stress σ_i for elasticpower hardening and power hardening materials. 本文利用文[1]介绍的方法计算了弹性—幂强化材料旋转圆盘的应力σ_(ij)、残余应力σ_(ij)~r、应力强度σ_i以及残余应力强度σ_i~r。计算结果表明对于弹性—幂强化材料和幂强化材料,切向应力σ_0和应力强度σ_i的分布具有明显的差别。 The tangential stress at the boundary can not been gained directly in the application of BEM to analysing elastic stress. In this paper, difference method is used for solving tangential stress at the boundary on the basis of BEM. The difference equations for the boundary tangential stress are derived in the case of constant boundary element. The calculation show that the method in this article is feasible, and simple and practical. The method and equations developed also can been used to calculate the boundary... The tangential stress at the boundary can not been gained directly in the application of BEM to analysing elastic stress. In this paper, difference method is used for solving tangential stress at the boundary on the basis of BEM. The difference equations for the boundary tangential stress are derived in the case of constant boundary element. The calculation show that the method in this article is feasible, and simple and practical. The method and equations developed also can been used to calculate the boundary tangential stress in the case of higher boundary element. 在用边界元法作弹性应力分析中,不能直接计算出弹性体边界切向应力。本文在边界元法分析的基础上,用差分法计算边界切向应力。推导出常边界单元情况下边界切向应力的差分公式。计算表明文中所述方法是可行的,并且简单实用。所研究的方法和公式也适用于高次边界单元的边界切向应力的计算。 In determination of the residual stress distribution in a hollow or a solid cylinder by Xraydiffraction after removal of material, it is imperative to calculate the additional stresses created by thestress relaxation. A method of evaluating the magnitudes of stress correction , in which power serieswill be used to approximate sectionally the measurd tangential and longitudinal stress curves withdepth, has been suppcoed and its evaluating formulas have been derived in the present paper.Whencalculating the magnitude... In determination of the residual stress distribution in a hollow or a solid cylinder by Xraydiffraction after removal of material, it is imperative to calculate the additional stresses created by thestress relaxation. A method of evaluating the magnitudes of stress correction , in which power serieswill be used to approximate sectionally the measurd tangential and longitudinal stress curves withdepth, has been suppcoed and its evaluating formulas have been derived in the present paper.Whencalculating the magnitude of stress correction at a certain depth from the surface,we may calculate therespective additional stresees created by removals of the previous sections and the section.in which thedepth under consideration is included by usins corresponding formulas.It has been shown that.in general,we can get the satisfactory results of stress correction by dividing the measured stress curve into afew sections (e. g. 1～3 sections) and approximating them with power serics with a few terms(e. g.1～3 terms) . 在圆筒或圆柱的剥层Ｘ射线应力测定中，可以用幂级数来分段近似剥离面的实测切向应力一层深函数和实测轴向应力一层深函数，从而计算剥层应力释放所产生的附加应力，求得原始的真实径向、切向和轴向应力沿半径方向的分布，文中给出计算应力校正量的公式。
