Relative Norm Disp Incr Convergence Test

The Relative Norm Disp Incr test checks convergence based on the ratio of the norm of the displacement increment vector to the norm of the current displacement vector.

Description

This test is particularly suitable for:

Problems with varying displacement magnitudes
Cases where relative convergence is more important than absolute
Nonlinear static analysis
Problems with significant geometric changes

The test calculates the ratio of the displacement increment norm to the current displacement norm and compares it to a specified tolerance.

Parameters

Parameter	Type	Description
`tol`	float	Tolerance for convergence (default: 1.0e-6)
`maxIter`	int	Maximum number of iterations (default: 10)
`printFlag`	int	Print flag for convergence information (default: 0)
`normType`	int	Norm type to use: 0 for max-norm, 1 for 1-norm, 2 for 2-norm (default: 2)

Usage Example

# Create a Femora instance


# Create a Relative Norm Disp Incr convergence test
fm.analysis.test.create_test("RelativeNormDispIncr", tol=1.0e-6, maxIter=10, printFlag=0, normType=2)