Titlebook: Structural Mechanics in Lightweight Engineering; Christian Mittelstedt Textbook 2021 The Editor(s) (if applicable) and The Author(s), unde

Gerontology

Principle of Stationary Value of the Total Elastic Potentiale principle of the stationary value of the total elastic potential. It can be derived from the principle of virtual displacements and represents the basis for a range of energy-based approximation methods in lightweight engineering.

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Principle of Virtual Forcesderation of virtual forces. Such principles have a significant value for lightweight engineering practice and are presented in this chapter. We then formalize these considerations with an explanation of the so-called force method for the analysis of statically determinate and statically indeterminat