Theory of Composite Shells

This learning track covers a comprehensive understanding of composite shells, their theory, and applications. It starts with the basic understanding of shell geometry and classification, including the derivation of fundamental forms of surfaces, the theorem of Rodrigues, and Weingarten formulas. The track then delves into the governing equations for shells, explaining the concept of strain energy, Hamilton principle, kinetic energy, and special cases of shells. The learners then explore shell theories and formulations, including membrane and moment shell theories, and their applications in structural engineering. The track further covers the analysis of cylindrical shell structures, including the development of governing equations and the bending analysis of a composite cylindrical shell. The learners also explore the techniques for finite shell solutions, including the Ritz and Galerkin methods, and the extended Kantorovich method. The track then covers the study of shell buckling, including the causes of buckling and the governing equations for buckling in cylindrical shells. Lastly, the track covers the advanced composite shell theory and its applications, including the development of bending solutions and a three-dimensional buckling solution for a cylindrical shell.

These courses have been developed by Prof. Poonam Kumari Das from IIT Guwahati for NPTEL. They are now accessible through Ansys Innovation Space courtesy of the partnership between Ansys and NPTEL, under the CC BY-SA license. For more details, visit https://nptel.ac.in/courses/112103298.

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Innovation Course

Composite Shells: Theory and Applications

This course covers the comprehensive understanding of the theory of composite shells. It is designed for postgraduate students, Ph.D. students, and faculty members who are interested in the development and applications of composite and sandwich materials i...Read more

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Innovation Course

Shell Geometry and Classification

This course covers the fundamental concepts of shell geometry and classification. It starts with the derivation of first and second fundamental forms of surfaces, explaining the definition of curvature, normal curvature, and principal curvatures. The course intro...Read more

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Innovation Course

Understanding Governing Equations for Shells

This course covers the comprehensive understanding of governing equations for shells. It begins with the derivation of basic equations and the theory of differential equations for shells. The course then explores the concept of strain energy in a shell...Read more

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Innovation Course

Comprehensive Shell Theories and Formulations

This course covers the fundamental concepts of shell theories and constitutive relations, membrane and moment shell theories, and their applications in structural engineering. For instance, learners will explore the steps to obtain solutions for displ...Read more

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Innovation Course

Cylindrical Shell Structures Analysis

This course covers the comprehensive understanding of cylindrical shell structures analysis. It begins with the explanation of a cylindrical shell panel, finite shell panel, and infinite shell panels, along with the theoretical concept of arc length and plane...Read more

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Innovation Course

Finite Shell Solutions Techniques

This course covers the comprehensive understanding of approximate solutions for finite shells under arbitrary support conditions. For instance, learners explore the Ritz and Galerkin methods, widely used techniques for developing solutions. The course also introd...Read more

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Innovation Course

Comprehensive Study of Shell Buckling

This course covers the in-depth study of buckling in shells, particularly focusing on cylindrical shells. It starts with a recap of foundational topics such as composites, shell equations, theorem of surfaces and strains, and the development of governing equa...Read more

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Innovation Course

Advanced Composite Shell Theory and Applications

This course covers the comprehensive study of composite shell theory, its development, and applications. It starts with the exploration of a three-dimensional solution for a cylindrical shell, explaining the concepts of doubly and singly curved she...Read more

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