Post-Buckling Behavior of Laminated Composite Cylindrical Shells Subjected to Axial, Bending and Torsion Loads

• 作者: Jagadish Babu Gunda Markandeya Ravvala Ravinder Reddy Pinninti Yengula Venkata Narayana
• 来源期刊: 世界工程和技术(英文)
• 学科: 物理学
• 关键词: POST-BUCKLING Cylindrical Shells Eigen IMPERFECTION Shapes AXIAL Compressive LOAD BENDING LOAD Torsion LOAD Arc-Length Method KNOCK-DOWN Factor
• 年，卷（期）: 2015,（4）
• 页码范围: 185-194
• 页数: 10页
• 分类号: O34

摘要

In present work, post-buckling behavior of imperfect (of eigen form) laminated composite cylindrical shells with different L/D and R/t ratios subjected to axial, bending and torsion loads has been investigated by using an equilibrium path approach in the finite element analysis. The Newton-Raphson approach as well as the arc-length approach is used to ensure the correctness of the equilibrium paths up to the limit point load. Post-buckling behavior of imperfect cylindrical shells with different L/D and R/t ratios of interest is obtained and the theoretical knock-down factors are reported for the considered cylindrical shells.