Definition
Two-dimensional (2D) equilibrium conditions of this general shell model are exact resultant implications of corresponding equilibrium conditions of continuum mechanics. The 2D unique shell kinematics consists of six scalar finite translation and rotation fields. Two surface drilling couples and two work-conjugate surface drilling bendings appear in the description of the shell stress and strain state. These additional fields and the shell drilling rotation become of primary importance when formulating and analyzing problems of irregular shell structures with branchings, intersections, or junctions along singular surface curves and/or having connections with beams or columns.
Introduction
In classical linear and nonlinear models of shells, the reduction of 3D mechanical problem of a thin solid body to the 2D problem of the shell is usually achieved applying some simplifying assumptions about kinematics of...
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Pietraszkiewicz, W. (2018). Elastic Shells, Resultant Nonlinear Theory. In: Altenbach, H., Öchsner, A. (eds) Encyclopedia of Continuum Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-53605-6_189-1
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DOI: https://doi.org/10.1007/978-3-662-53605-6_189-1
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