Linear Solver class

Parent class

• Solver class

Class doc

class femedu.solver.LinearSolver.LinearSolver

A linear system solver

This solver implies \(\{{\bf P}\} = [{\bf K}] \{{\bf u}\}\)

assemble(force_only=False)

inherited from Solver class.

pushState(state)

Pushes state to the solver. The solver will use that data to update it’s internal state.

state is defined as a dictionary with the following contents:

nodes	list of node pointers (required)
elements	list of element pointers (required)
P0	system vector of initial forces
Pref	system vector of reference forces
u1	system vector of current (converged) displacements
un	system vector of previous (converged) displacements
lam1	load level of current (converged) displacements
lamn	load level of previous (converged) displacements

Parameters:

state – state of the solver

solve(**kwargs)

Solves the system assuming the given load is the total load and the obtained displacement is the total displacement.

Note

This method will not verify whether or not the linear assumption is correct. The resulting forces may be out of equilibrium if the system experiences nonlinear behavior under the given load.