Nonlinear buckling characteristics of regular asymmetric laminates
- Montana State Univ., Bozeman, MT (United States). Dept. of Mechanical Engineering
The paper concerns the nonlinear buckling behavior of asymmetric laminated columns subjected to axial compression. The formulation of the problem is based on large deformation theory, accordingly, the obtained solution affords the exact analysis of the postbuckling structural response. In the study, attention is focused on the behavior of regular asymmetric laminated columns composed of two layers of different materials. The effects of bending-stretching coupling and the imperfection sensitivity of such laminates are examined in detail. The analysis leads to a number of general conclusions. It is shown, in particular, that asymmetric laminated columns with no imperfections have buckling characteristics similar to those of their homogeneous counterparts subjected to eccentric compressive loads. In general, asymmetric laminated columns exhibit stable postbuckling behavior, however, under certain conditions, they undergo bifurcation. In this regard, the concepts of ``critical`` and ``bifurcation`` loads for asymmetric laminates are discussed. The results obtained from the analysis are illustrated in graphical form.
- OSTI ID:
- 86256
- Report Number(s):
- CONF-950116--; ISBN 0-7918-1295-2
- Country of Publication:
- United States
- Language:
- English
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