Non-linear Buckling and Post-buckling Analysis of Cylindrical Shells Subjected to Axial Compressive Loads: A Study on Imperfection Sensitivity

Nonlinear engineering: Modeling and application

article

Y. Venkata Narayana¹  Jagadish Babu Gunda²  P. Ravinder Reddy³  R. Markandeya⁴ 

[1] Department of Mechanical Engineering, SreeNidhi Institute of Science and Technology;Advanced Systems Laboratory;Department of Mechanical Engineering, Chaitanya Bharathi Institute of Science and Technology;Department of Metallurgical Engineering JNTU Kukatpally

关键词: Non-linear buckling;    post-buckling;    cylindrical shells;    imperfection sensitivity;    axial compressive loads;   

DOI  :  10.1515/nleng-2013-0009

来源: De Gruyter

【 摘 要 】

Imperfection sensitivity of cylindrical shells subjected to axial compressive load is investigated by means of non-linear buckling analysis and post-buckling analysis. Non-linear buckling analysis involves the determination of the equilibrium path (or load-deflection curve) upto the limit point load by using the Newton-Raphson approach, whereas post-buckling analysis involves the determination of the equilibrium path beyond the limit point load and up to the collapse load by using the arc-length approach. Limit point loads evaluated from these two approaches for various imperfection magnitudes show an excellent agreement which clearly confirms the numerical results obtained.

【 授权许可】

Unknown