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<Node name="root" dt="0.02" showBehaviorModels="1" showCollisionModels="0" showMappings="0" showForceFields="1">
<Node name="Single">
<Object type="EulerImplicit" name="cg_odesolver" printLog="false"/>
<Object type="CGLinearSolver" iterations="25" name="linear solver" tolerance="1.0e-9" threshold="1.0e-9" />
<Node name="M1">
<Object type="MechanicalObject" />
<Object type="UniformMass" mass="1" />
<Object type="RegularGrid"
nx="4" ny="4" nz="28"
xmin="-9" xmax="-6"
ymin="0" ymax="3"
zmin="0" zmax="27"
/>
<Object type="BoxConstraint" box="-9.1 -0.1 -0.1 -5.9 3.1 0.1" />
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<Object type="TetrahedronFEMForceField" name="FEM" youngModulus="4000" poissonRatio="0.3" />
</Node>
</Node>
<Node name="AttachOneWay">
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<Object type="CGLinearSolver" iterations="25" name="linear solver" tolerance="1.0e-9" threshold="1.0e-9" />
<Node name="M1">
<Object type="MechanicalObject" />
<Object type="UniformMass" mass="1" />
<Object type="RegularGrid"
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/>
<Object type="BoxConstraint" box="0.9 -0.1 -0.1 4.1 3.1 0.1" />
<Object type="TetrahedronFEMForceField" name="FEM" youngModulus="4000" poissonRatio="0.3" />
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<Node name="M2">
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<Object type="MechanicalObject" />
<Object type="UniformMass" mass="1" />
<Object type="RegularGrid"
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/>
<Object type="TetrahedronFEMForceField" name="FEM" youngModulus="4000" poissonRatio="0.3" />
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<Object type="MechanicalObject" />
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/>
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<Object type="TetrahedronFEMForceField" name="FEM" youngModulus="4000" poissonRatio="0.3" />
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<Object type="AttachConstraint" object1="M1" object2="M2" radius="0.1" indices1="144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159" indices2="0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15" />
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<Node name="AttachTwoWay">
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<Node name="M1">
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<Object type="MechanicalObject" />
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/>
<Object type="TetrahedronFEMForceField" name="FEM" youngModulus="4000" poissonRatio="0.3" />
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<Node name="M3">
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<Object type="MechanicalObject" />
<Object type="UniformMass" mass="1" />
<Object type="RegularGrid"
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ymin="0" ymax="3"
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/>
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<Object type="TetrahedronFEMForceField" name="FEM" youngModulus="4000" poissonRatio="0.3" />
</Node>
<Object type="AttachConstraint" object1="M1" object2="M2" twoWay="true" radius="0.1" indices1="144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159" indices2="0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15" />
<Object type="AttachConstraint" object1="M2" object2="M3" twoWay="true" radius="0.1" indices1="144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159" indices2="0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15" />
</Node>
</Node>
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