A Nondestructive Technique for the Evaluation of Thin Cylindrical Shells' Axial Buckling Capacity

Abstract The axial buckling capacity of a thin cylindrical shell depends on the shape and size imperfections that are present in it. Therefore, prediction shells is difficult, expensive, time consuming, if not impossible, because requires priori knowledge about imperfections. As result, designed conservatively using knockdown factor approach accommodates uncertainties associated with shells; almost all design codes follow this explicitly or implicitly. A novel procedure proposed for accurate without measuring based probing axially loaded shells. Computational experimental implementation yields results when done location highest imperfection amplitude. However, overpredicts away from point. This study demonstrates crucial role played by shows imperfect cylinders possible at proper location.