!!! warning
At this time, the handling of element-memory (see [Creating an element](@ref)) is not implemented.
StaticX is a non-linear, static, explicit solver for "normal" FEM (not optimisation-FEM): At a succession of times t, it will solve R(X(t),t)=0 (see Theory).
StaticX can be applied to models that have U and A-dofs. This is handled as follows: One input to StaticX is a State, which can come from initialize! or from the output of another solver. StaticX will keep the U- and A-dofs to the value in the input State. initialize! sets all dofs to zero, so when StaticX is given a State produced by initialize! the analysis starts with X-dofs equal to zero, and U- and A-dofs are kept zero throughout the analysis.
StaticX handles inequality constraints using a simplified interior point method, without a feasibility step. This works (reasonnably) well in concert with the built-in DofConstraint element.
See StaticX.
!!! warning
At this time, the handling of element-memory (see [Creating an element](@ref)) is not implemented.
StaticXUA is a non-linear, static, optimisation-FEM solver, with load and model parameter identification. Given a vector of static equilibrium configurations, obtained for example using StaticX, on a model with costs (and possibly constraints) on U- and A-dofs, the solver will determine response (X-dofs) and unknown loads for each step (Udofs) as well as model parameters for the whole history (Adofs).
The solvers handles inequality constraints in the same way as StaticX.
See StaticXUA.