探讨了计数管扫描平面侧向倾角γ对X射线应力测量值的影响。该倾角所造成的应力测量值误差为: Δσ_X=-(σ_YSin~2γ+τ_(XY)sinγΣD_i sin2ψ_i)式中 D_i=(Σsin~2ψ_i-nsin~2ψ_i)/(Σsin~2Ψ_i)~2-nΣsin~4ψ_i (n为ψ的个数) 对误差公式进行了试验验证,并利用该公式讨论了圆弧表面的轴向应力测量误差和某些X射线受到遮挡情况下的应力测定问题。
The error in the X-ray stress measurement caused by the side declining angle, γ,of the counter scanning plane is shown to be: Δσ_X=-(σ_Ysin~2γ+τ_(XY)csin2ψ_i)in which D_i=∑sin~2ψ_i-nsin~2ψ/(∑sin~2ψ_i)~2-n∑sin~4ψ_i; n is the number of ψ. Such a relation isbeing supported by experimental results obtained in our laboratory. The error in stress measurements along axial direction of a cylindrical surfaceand certain problems encountered in the X-ray stress measurements of anomalous-ly shaped machine parts are discussed based on the above formula.
参考文献
| [1] |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%