The elastic-plastic buckling of 6061-T4 aluminum, circular cylindrical shells is examined experimentally and analytically. Groups of shells with radius-to-thickness ratios of 100, 200, and 300 were loaded with short-duration axisymmetric pressure pulses. A fast-discharge capacitor bank and current pulse shaping technique are utilized to provide a sine-squared pressure pulse with duration of about 5 μsec, a duration sufficiently short that loading can be considered impulsive. Average peak-to-peak permanent buckling deformations and wave numbers are compared with predictions from a Lagrangian, finite-difference computer code, and good agreement is obtained between measurements and predictions.
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Elastic-Plastic Buckling of Aluminum Cylindrical Shells Subjected to Axisymmetric Impulse Loads
D. L. Wesenberg
Shock Simulation Department, Sandia Laboratories, Albuquerque, New Mex.
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Wesenberg, D. L. (December 1, 1974). "Elastic-Plastic Buckling of Aluminum Cylindrical Shells Subjected to Axisymmetric Impulse Loads." ASME. J. Appl. Mech. December 1974; 41(4): 985–988. https://doi.org/10.1115/1.3423495
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