任意边界条件下用有限元法修正光弹性实验泊松比影响的处理

Handling of Correction of the Influence of Poisson's Ratio upon the Results of Photoelastic Experiments by Finite—element Method under the Condition of Optional Boundary

本文是参考文献[1]和[2]的补充和推广. 文[1]、[2]讨论了用有限元法修正平面问题不同泊松比μ值对光弹性实验结果的影响,提出了对网格划分细度是否是足够的一种有效的检验方法,但仅局限于静定支承的情况(实质上相当于应力边界条件),本文在此基础上进一步讨论了任意边界条件下的处理方法。

This paper is the supplement and extension of references of [1] and [2] in which a probe has been made into the correction of the influence of Poisson's ratio of varying n value concerning plane problems upon the results of photoelastic experiments by finite-element method, and a useful method of testing has been raised concerning that whether or not it is sufficient for the degree of smaliness of the net dividing,but it is only confined to the condition of statical determinacy supporting (essentially it is equal to the condition of stress boundary). This paper is to further deal with the handling method under the condition of optional boundary on the above basis.