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Constant Stiffness Model

The linear stiffness force is computed according to Hooke’s Law of Elasticity:

Fi=ki·qi

Where:

ki is the constant stiffness value found in corresponding [CONSTANT_STIFFNESS_xx] block for the ith direction in the property file.

qi is the displacement of Body-I relative to Body-J in the ith direction after offset, scaling and coupling effects have been considered.

The default value for ki is the slope of the experimentally measured static spline at (0,0).