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Learning Objectives

16.20 is a junior and senior level course which provides the fundamental knowledge to understand, analyze and design load-bearing structures. Although the focus is on aerospace applications, the theory and the majority of the applications are equally relevant in other areas of structural analysis. The first part of the course provides an in-depth study of three-dimensional elasticity theory, including the concepts of stress and strain, equilibrium, compatibility and elastic constitutive laws and anisotropic materials. The second part focuses on classical analytical solution procedures of the boundary value problem of isotropic linear elasticity in situations of important practical application. This includes states of plane strain, plane stress and torsion. This is followed by the analysis of structural elements with an increasing level of complexity: simple beam theory, combined bending, shear, and torsion of thin-wall shell beams, and buckling.

Students who successfully complete 16.20 will have the ability to:

  1. formulate and apply appropriate mathematical and numerical models to predict the state of stress and deformation of one, two and three-dimensional aerospace structures.
  2. explain the limitations of the models, assess their applicability to realistic configurations and estimate the errors resulting from their application.
  3. apply the concepts learned in the course to assess and explain the possibility of failure in aerospace structural components and systems.

Measurable Outcomes

Pedagogy

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Homework: Reading Assignments & Problem Sets

Homework and Project Collaboration

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