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This document describes residual force equations, which represent the equilibrium of forces at the discrete level for discretized continuum models of nonlinear structures, such as those generated using the finite element method. It introduces the residual vector r, which contains out-of-balance forces, and how r depends on the state vector u (containing degrees of freedom) and control parameter vector Λ. It also describes the stiffness matrix K and control matrix Q, obtained by taking derivatives of r with

Author

Shubhankar Bhowmick

Language

EN