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首页> 外文期刊>Zeitschrift fur Angewandte Mathematik und Mechanik >Photoelastic-numerical treatment of Beltrami-Michell boundary value problems
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Photoelastic-numerical treatment of Beltrami-Michell boundary value problems

机译:Beltrami-Michell边值问题的光弹数值处理

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摘要

One of the main challenges of using photoelasticity has always been its complexity to determining all stress components, for it provides an unfinished solution. Indeed, the use of the Beltrami-Michell Boundary Value Problem remains of practical interest for the study of the stress-separation, when complemented by the photoelasticity analysis to acquire the Dirichlet conditions. The synergy of both is enhanced with the use of Finite Difference Method to work out a photoelastic-numerical hybrid method for stress analysis under plane conditions. On the other hand, while for photoelasticity specially, annular disks under diametral compressive load are usually used as standard models allowing to check the performance of any developed method; because theoretical solutions exist. A comprehensive study has been carried out to show the photoelastic-numerical method in order to investigate the in-plane stress distribution using isochromatic values only on the boundaries of an annular object subjected to diametral compression. Compared with a reference work, the obtained results are more than concluding. The method is fast in the analysis for a low cost.
机译:使用光弹性的主要挑战之一一直是确定所有应力分量的复杂性,因为它提供了未完成的解决方案。确实,在通过光弹性分析获得狄利克雷特条件的补充下,使用贝尔特拉米-米歇尔边值问题仍然是研究应力分离的实际兴趣。有限差分法的应用增强了两者的协同作用,从而开发出了一种光弹-数字混合方法来进行平面条件下的应力分析。另一方面,特别是对于光弹性而言,通常使用直径压缩载荷下的环形盘作为标准模型,以检查任何已开发方法的性能。因为存在理论解。为了研究仅在经受径向压缩的环形物体的边界上使用等色值的平面内应力分布,进行了全面的研究以显示光弹性数值方法。与参考工作相比,所获得的结果是结论性的。该方法分析速度快,成本低。

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