Shells Plates and Rods
We mentioned already that in the theories of thin bodies, with one (or two) dimensions small in comparison with the remaining two (or one) dimensions of the body, the equations valid for the three-dimensional continuum may be simplified. This is of the greatest technical importance. Different approximations of the three-dimensional equations lead to different models, but the common characteristic of all these models is that the orientation of the elements, the presence of couple—stresses and hyperstresses etc. appear as a result of the approximation and as a substitute of the neglected thickness of the body considered.
KeywordsConstitutive Equation Compatibility Condition Laminate Composite Middle Surface Unit Tangent Vector
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