Simplified Theory for the Behaviour of Buried Flexible Cylinders Under the Influence of Uniform Hoop Compression

摘要

The elastic behavior of a long flexible cylinder buried in an infinite elastic medium and acted on by uniform hoop compressions is examined. A number of alternative solutions are developed in order to assess the influence of the component shell and continuum theories. A simplified solution is obtained, which can be used to accurately and efficiently determine the cylinder response. A straightforward method is developed for predicting the prebuckling displacements and bending moments which result from the influence of initial geometrical imperfections, nonuniform hydrostatic and nonhydrostatic field stresses. An example problem is treated to illustrate the use of the theory.