Buckling solving by FEM. Basic matrix equation of buckling. Solving critical loading.
Geometric stiffness matrix for bar and beam finite element. Numerical method for solving of critical loading factor.
Non-linear collapse of constructions. Geometric, materiál and structural nonlinearities. Three kinds of stiffness matrix in nonlinear colapse. Basic eguation for equilibrium of internal forces. Example: bar element
Equilibrium path. Path for one DOF. Critical points on path – critical and bifurcation points.
Practical examples. MATLAB procedures.
Newton-Raphson method. Arc-length method and their agorithm.
Geometric stiffness matrix for bar and beam finite element. Numerical method for solving of critical loading factor.
Non-linear collapse of constructions. Geometric, materiál and structural nonlinearities. Three kinds of stiffness matrix in nonlinear colapse. Basic eguation for equilibrium of internal forces. Example: bar element
Equilibrium path. Path for one DOF. Critical points on path – critical and bifurcation points.
Practical examples. MATLAB procedures.
Newton-Raphson method. Arc-length method and their agorithm.