Buckling response of hygro-thermally curvature-stable laminates with extension-twisting coupling

Shamsudin, M., Chen, J. and York, C.B. (2012) Buckling response of hygro-thermally curvature-stable laminates with extension-twisting coupling. In: 1st International Conference of the International Journal of Structural Integrity, Porto, Portugal, 25-28 June 2012,

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The bounds on buckling strength of simply supported laminated plates with extension- twisting coupling are investigated. A closed form buckling solution is shown to be applicable to this class of coupled laminate for which the stacking sequences can be derived using standard ply-angle orientations (45, 0 and 90) of constant ply thickness. These results are also validated using a commercial finite element code. Attention is focused on a special sub- class of extension-twisting coupled laminate that is free from the thermal distortion that generally arise from the high temperature curing process; these special laminates are generally referred to as hygro-thermally curvature-stable. Bounds on the buckling solutions are presented for all hygro-thermally curvature-stable laminates, possessing extension-twisting (and shearing-bending) coupling and consisting of 8-, 12-, 16- and 20-ply laminates within the range of thin laminates investigated, i.e. up to 21 plies. Improvements in the buckling strength have been observed for laminates with standard ply orientations, compared to those optimized for maximum twist using free-form ply orientati

Item Type:Conference Proceedings
Glasgow Author(s) Enlighten ID:York, Dr Christopher
Authors: Shamsudin, M., Chen, J., and York, C.B.
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment

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