Buckling and Postbuckling Studies of Moment-Loaded Thin-Wall Cylindrical Shells with Cutouts.
MASSACHUSETTS INST OF TECH CAMBRIDGE AEROELASTIC AND STRUCTURES RESEARCH LAB
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An experimental study of the prebuckling, incipient buckling, and postbuckling behavior of thin-wall aluminum cylindrical shells with a nominal Rh of 100 and subjected to pure bending is reported. The investigation includes initially-undamaged and cutout-predamaged cylindrical shells. The types of predamage include a a single circular hole three different diameters were employed and b a single slotted hole of fixed size and aspect ratio but oriented axially phi 0 degrees, obliquely phi 45 degrees, or circumferentially phi 90 degrees. Emphasis is given to studying the load-deflection behavior and the associated buckling patterns in the postbuckling range, for both monotonically-increasing angular deflections of the buckled region and unloading-reloading behavior. Load-deflection characteristics and buckling patterns distinctive to each type of specimen tested are presented for bending rotations extending to about 15-20 degrees. Author
- Structural Engineering and Building Technology