| 1. | The grid method of strain analysis is one of the oldest techniques known to experimental stress analysis .
格栅法是实验应力分析中最古老的技术之一。 |
| 2. | Experimental stress analysis
实验应力分析 |
| 3. | An experimental study on concrete - filled steel tubes under bending and torsion is conducted . the experimental stress analysis shows that values of practical critical stress of the steel tube correspond well with mises yielding rule
离心钢管混凝土管在不同弯扭加载路径作用下，其扭矩与转角的关系在各阶段特点趋势与纯扭转作用下的情况基本相似。 |
| 4. | The complex function between isochromatic fringe orders and rgb gray values of the image pixels is described by bp artificial neural network . the technique can improve the precision of experimental stress analysis in three - dimensional photoelastic thin slices
其特点是通过bp神经网络建立图像中像素点的r 、 g 、 b颜色值与条纹级数n之间的非线性关系；可以准确地得到3级以内等色线条纹级数。 |
| 5. | The photo - elasticity experimental method developed in 1930s had become the experimental stress analysis " leading method , but with high performance computer combined with finite element method . and the photo - elasticity method will take time and money , now it is seldom applied . so how to overcome its disadvantage and exert its advantage at calculating stress concentration factor became one new problem
二十世纪三十年代发展起来的光弹性实验方法曾经成为实验应力分析的主要方法之一，但是随着高性能与计算机有限元法的结合，加上光弹性实验方法费时费力等缺陷，进入80年代后逐渐被大型通用有限元软件所取代，运用的情况越来越少。 |
| 6. | Relying on a research subject , the prestressed tests of one important building prepared for the west lake exposition 2001 , which is in the period of this paper , the important discipline of structure " complete stress " is posted by means of theoretical calculation and experimental stress analysis . in addition , relatedly guiding thoughts and some suggests for optimal construction of the modern structural engineering are brought forward in this paper
依托作者论文期间参与的杭州西湖博览会某重点场馆预应力结构施工检测课题的科研实践，用理论计算和现场实验分析途径，揭示了结构“全应力”分析的重要规律；并对现代结构工程施工方案的优化提出有关的指导思路和若干建议。 |
| 7. | Abstract : the therortical calculation of the bending stress of the root and experimental stress analysis on the modified profile and the standard involute tooth profile were made with the finite element method and the electric resistance strain film method . this indicated that the modified profile was supe rior to the standard involute profiles in terms of the bending strength
文摘:分别用有限元和电阻应变片法对修形齿形和渐开线齿形进行齿根弯曲应力计算与实验应力分析.结果证明在弯曲强度方面修形齿形比标准渐开线齿形更优越 |
