Buckling deformation in axially compressed elastic-plastic cylindrical shells initiated by local axisymmetric imperfections

✍ Scribed by H. Ramsey

• Publisher: Springer
• Year: 1981
• Tongue: English
• Weight: 546 KB
• Volume: 15
• Category: Article
• ISSN: 0022-0833
• DOI: 10.1007/bf00042778

✦ Synopsis

A solution for growth of a perturbation describing buckling deformation initiated by a local axisymmetric imperfection in an axially compressed elastic-plastic cylindrical shell is obtained in simple closed form for small time. The constitutive relations for the plastic strains are based on simple J~ flow theory. A comparison is made with bifurcation analysis, and localization of the buckling deformation is examined.

where P is a uniform compressive stress, and Sx, s o are small perturbations due to the buckling deformation. Force resultants Nx, N o are associated with the perturbation stresses Sx, s o ,