Mathematical Problems in Engineering / 2008 / Article / Alg 1

Research Article

Constrained and Unconstrained Optimization Formulations for Structural Elements in Unilateral Contact with an Elastic Foundation

Algorithm 1

Nonlinear solution strategy based on the second-order Newton method.
(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

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