Dynamic buckling of imperfect cylindrical shells under Axial compression and bending moment

摘要

The dynamic stability of circular metallic and laminated cylindrical shells is investigated. The cylinders are geometrically imperfect and subjected to axial compression or pure bending moment. These loads re suddenly applied with constant magnitude and finite or infinite duration. The finite element method is employed to generate dynamic responses and the equations of motion approach to determine dynamic critical loads. The effects of load duration and imperfection amplitude on critical loads are discussed.