]>Constrained and Unconstrained Optimization Formulations for Structural Elements in Unilateral Contact with an Elastic Foundation : Algorithm 1
(1) Initialize: W 0 (A and )
(2) Iterations (equilibrium problem):
(i) Compute: M (k-1)
(ii) Compute: g (k-1)
(iii) Check convergence:
   Yes: Go to step (3)
   No: Compute the corrections:
    Updated variables: , go to step (2)
(3) Print the variables and stop
Algorithm 1: Nonlinear solution strategy based on the second-order Newton method.