Full-Scale Experiments and Analyses of Cellular Hull Sections in Compression

[+] Author and Article Information
R. J. Dexter, J. M. Ricles, L.-W. Lu, A. A.-K. Pang

Center for Advanced Technology for Large Structural Systems, Lehigh University, 117 ATLSS Drive, Bethlehem, PA 18015-4729

J. E. Beach

Surface Ship Structures Division, Naval Surface Warfare Center, David Taylor Model Basin, Carderock, MD 20084-5000

J. Offshore Mech. Arct. Eng 118(3), 232-237 (Aug 01, 1996) (6 pages) doi:10.1115/1.2828839 History: Received December 27, 1994; Revised December 06, 1995; Online December 17, 2007


Compression tests were conducted on high-strength single-cell and multiple-cell box sections with plate width-to-thickness (b/t ) ratios ranging from 48 to 96. Local plate buckling occurred at stresses as low as 5 percent of the yield stress, whereas the ultimate compression stress ranged from 38 to 72 percent of the yield stress. These critical stresses were not significantly affected by the length of the specimen, the number of cells, the boundary conditions, or lateral load. Simple empirical design equations based only on b/t gave estimates of the collapse strength within five percent in all cases. Finite-element analyses were able to predict the significant reserve load-carrying capacity and ductility after ultimate load, which was dependent on the length of the specimen as well as the b/t ratio.

Copyright © 1996 by The American Society of Mechanical Engineers
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