Two structural models which can be used to predict the buckling, post buckling and
vibration behavior of flat and curved composite panels under thermomechanicalloadings are
developed in this work. Both models are based on higher-order transverse shear deformation
theories of shallow shells that include the effects of geometric nonlinearities and initial
geometric imperfections. Within the first model (Model I), the kinematic continuity at the
contact surfaces between the contiguous layers and the free shear traction condition on the
outer bounding surfaces are satisfied, whereas in the second model (Model II), in addition
to these conditions, the static interlaminae continuity requirement is also fulfilled.
Based on the two models, results which cover a variety of problems concerning the
postbuckling behaviors of flat and curved composite panels are obtained and displayed.
These problems include: i) buckling and postbuckling behavior of flat and curved laminated
structures subjected to mechanical and thermal loadings; ii)frequency-load/temperature
interaction in laminated structures in both pre-buckling and post buckling range; iii) the
influence of a linear/nonlinear elastic foundation on static and dynamic post buckling behavior
of flat/curved laminated structures exposed to mechanical and tern perature fields; iv)
implication of edge constraints upon the temperature/load carrying capacity and frequencyload/
temperature interaction of flat/curved structures; v) elaboration of a nUITlber of methodologies
enabling one to attenuate the intensity of the snap-through buckling and even to
suppress it as well as of appropriate ways enabling one to enhance the load/temperature
carrying capacity of structures.
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