بررسی رفتار خمشی لوله های انعطاف پذیر با استفاده از پردازش تصویر دیجیتال

The pipe-in-pipe proposed by the authors in this study, consists of an inner and an outer pipe. The core between the inner and outer pipes is filled with a granular material. The pipe-in-pipe can bend smoothly and uniformly under large curvature in comparison with the single walled pipe. In recent years, digital image processing as a method for measuring deformation of structures has been widely adopted. In this study, the authors show the effect of fill sand on the bending behavior of a single walled pipe, and evaluate the elasto-plastic behavior of the pipe by using digital image processing method.