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

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="86520.fig.002a" src="https://static.hindawi.com/articles/mpe/volume-2008/786520/figures/86520.fig.002a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b><span class="inline" id="M16"></span></td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="86520.fig.002b" src="https://static.hindawi.com/articles/mpe/volume-2008/786520/figures/86520.fig.002b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b><span class="inline" id="M17"></span></td></tr></table></td></tr><tr class="fig-image" id="c"><td><img alt="86520.fig.002c" src="https://static.hindawi.com/articles/mpe/volume-2008/786520/figures/86520.fig.002c.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(c) </b><span class="inline" id="M18"></span></td></tr></table></td></tr><tr class="fig-image" id="d"><td><img alt="86520.fig.002d" src="https://static.hindawi.com/articles/mpe/volume-2008/786520/figures/86520.fig.002d.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(d) </b>Contact law</td></tr></table></td></tr></table>

<table>Domain of validity of the contact constraints.</table>

Mathematical Problems in Engineering

fig2

Figure 2

Figure 2: Constrained and Unconstrained Optimization Formulations for Structural Elements in Unilateral Contact with an Elastic Foundation 