Lecture 11: Solution of Nonlinear Static FE Equations II

Topics: Solution of the nonlinear finite element equations in static analysis II

• Automatic load step incrementation for collapse and post-buckling analysis
• Constant arc-length and constant increment of work constraints
• Geometrical interpretations
• An algorithm for automatic load incrementation
• Linearized buckling analysis, solution of eigenproblem
• Value of linearized buckling analysis
• Example analysis: Collapse of an arch - linearized buckling analysis and automatic load step incrementation, effect of initial geometric imperfections

Instructor: Klaus-Jürgen Bathe