ShapeOptimization::ObjectiveFunctionData Struct Reference

Abstract interface for Python-defined objective functions. More...

#include "tutorials/vec-7_shape_optimisation/src/ObjectiveFunctionData.hpp"

Public Member Functions
virtual MoFEMErrorCode	evalInteriorObjectiveFunction (MatrixDouble &coords, boost::shared_ptr< MatrixDouble > u_ptr, boost::shared_ptr< MatrixDouble > stress_ptr, boost::shared_ptr< MatrixDouble > strain_ptr, boost::shared_ptr< MatrixDouble > o_ptr, bool symmetrize=true)=0
	Evaluate objective function f(coords, u, stress, strain)
virtual MoFEMErrorCode	evalInteriorObjectiveGradientStress (MatrixDouble &coords, boost::shared_ptr< MatrixDouble > u_ptr, boost::shared_ptr< MatrixDouble > stress_ptr, boost::shared_ptr< MatrixDouble > strain_ptr, boost::shared_ptr< MatrixDouble > o_ptr, bool symmetrize=true)=0
	Evaluate gradient of objective function w.r.t. stress: ∂f/∂σ
virtual MoFEMErrorCode	evalInteriorObjectiveGradientStrain (MatrixDouble &coords, boost::shared_ptr< MatrixDouble > u_ptr, boost::shared_ptr< MatrixDouble > stress_ptr, boost::shared_ptr< MatrixDouble > strain_ptr, boost::shared_ptr< MatrixDouble > o_ptr, bool symmetrize=true)=0
	Evaluate gradient of objective function w.r.t. strain: ∂f/∂ε
virtual MoFEMErrorCode	evalInteriorObjectiveGradientU (MatrixDouble &coords, boost::shared_ptr< MatrixDouble > u_ptr, boost::shared_ptr< MatrixDouble > stress_ptr, boost::shared_ptr< MatrixDouble > strain_ptr, boost::shared_ptr< MatrixDouble > o_ptr, bool symmetrize=true)=0
	Evaluate gradient of objective function w.r.t. displacement: ∂f/∂u.
virtual MoFEMErrorCode	evalBoundaryObjectiveFunction (MatrixDouble &coords, boost::shared_ptr< MatrixDouble > u_ptr, boost::shared_ptr< MatrixDouble > t_ptr, boost::shared_ptr< VectorDouble > o_ptr, bool symmetrize=true)=0
virtual MoFEMErrorCode	evalBoundaryObjectiveGradientTraction (MatrixDouble &coords, boost::shared_ptr< MatrixDouble > u_ptr, boost::shared_ptr< MatrixDouble > t_ptr, boost::shared_ptr< MatrixDouble > o_ptr)=0
	Evaluate gradient of objective function w.r.t. traction-like vector field.
virtual MoFEMErrorCode	evalBoundaryObjectiveGradientU (MatrixDouble &coords, boost::shared_ptr< MatrixDouble > u_ptr, boost::shared_ptr< MatrixDouble > t_ptr, boost::shared_ptr< MatrixDouble > o_ptr)=0
virtual MoFEMErrorCode	numberOfModes (int block_id, int &modes)=0
	Return number of topology optimization modes for given block.
virtual MoFEMErrorCode	blockModes (int block_id, MatrixDouble &coords, std::array< double, 3 > &centroid, std::array< double, 6 > &bbox, MatrixDouble &o_ptr)=0
	Define spatial modes for topology optimization.
virtual	~ObjectiveFunctionData ()=default

Detailed Description

Abstract interface for Python-defined objective functions.

This interface allows users to define custom objective functions in Python that can be called from C++ during the optimization process. The objective function and its gradients are evaluated at integration points using:

• Coordinates of integration points
• Displacement field values
• Stress and strain tensors

Key methods:

• evalInteriorObjectiveFunction: Compute f(x,u,σ,ε)
• evalInteriorObjectiveGradientStress: Compute ∂f/∂σ
• evalInteriorObjectiveGradientStrain: Compute ∂f/∂ε
• numberOfModes: Return number of topology modes for optimization
• blockModes: Define spatial topology modes for shape optimization

Definition at line 31 of file ObjectiveFunctionData.hpp.

Constructor & Destructor Documentation

~ObjectiveFunctionData()

virtual ShapeOptimization::ObjectiveFunctionData::~ObjectiveFunctionData ( )

virtualdefault

Member Function Documentation

blockModes()

virtual MoFEMErrorCode ShapeOptimization::ObjectiveFunctionData::blockModes ( int  block_id, MatrixDouble &  coords, std::array< double, 3 > &  centroid, std::array< double, 6 > &  bbox, MatrixDouble &  o_ptr  )

pure virtual

Define spatial modes for topology optimization.

evalBoundaryObjectiveFunction()

virtual MoFEMErrorCode ShapeOptimization::ObjectiveFunctionData::evalBoundaryObjectiveFunction ( MatrixDouble &  coords, boost::shared_ptr< MatrixDouble >  u_ptr, boost::shared_ptr< MatrixDouble >  t_ptr, boost::shared_ptr< VectorDouble >  o_ptr, bool  symmetrize = true  )

pure virtual

evalBoundaryObjectiveGradientTraction()

virtual MoFEMErrorCode ShapeOptimization::ObjectiveFunctionData::evalBoundaryObjectiveGradientTraction ( MatrixDouble &  coords, boost::shared_ptr< MatrixDouble >  u_ptr, boost::shared_ptr< MatrixDouble >  t_ptr, boost::shared_ptr< MatrixDouble >  o_ptr  )

pure virtual

Evaluate gradient of objective function w.r.t. traction-like vector field.

evalBoundaryObjectiveGradientU()

virtual MoFEMErrorCode ShapeOptimization::ObjectiveFunctionData::evalBoundaryObjectiveGradientU ( MatrixDouble &  coords, boost::shared_ptr< MatrixDouble >  u_ptr, boost::shared_ptr< MatrixDouble >  t_ptr, boost::shared_ptr< MatrixDouble >  o_ptr  )

pure virtual

evalInteriorObjectiveFunction()

virtual MoFEMErrorCode ShapeOptimization::ObjectiveFunctionData::evalInteriorObjectiveFunction ( MatrixDouble &  coords, boost::shared_ptr< MatrixDouble >  u_ptr, boost::shared_ptr< MatrixDouble >  stress_ptr, boost::shared_ptr< MatrixDouble >  strain_ptr, boost::shared_ptr< MatrixDouble >  o_ptr, bool  symmetrize = true  )

pure virtual

Evaluate objective function f(coords, u, stress, strain)

evalInteriorObjectiveGradientStrain()

virtual MoFEMErrorCode ShapeOptimization::ObjectiveFunctionData::evalInteriorObjectiveGradientStrain ( MatrixDouble &  coords, boost::shared_ptr< MatrixDouble >  u_ptr, boost::shared_ptr< MatrixDouble >  stress_ptr, boost::shared_ptr< MatrixDouble >  strain_ptr, boost::shared_ptr< MatrixDouble >  o_ptr, bool  symmetrize = true  )

pure virtual

Evaluate gradient of objective function w.r.t. strain: ∂f/∂ε

evalInteriorObjectiveGradientStress()

virtual MoFEMErrorCode ShapeOptimization::ObjectiveFunctionData::evalInteriorObjectiveGradientStress ( MatrixDouble &  coords, boost::shared_ptr< MatrixDouble >  u_ptr, boost::shared_ptr< MatrixDouble >  stress_ptr, boost::shared_ptr< MatrixDouble >  strain_ptr, boost::shared_ptr< MatrixDouble >  o_ptr, bool  symmetrize = true  )

pure virtual

Evaluate gradient of objective function w.r.t. stress: ∂f/∂σ

evalInteriorObjectiveGradientU()

virtual MoFEMErrorCode ShapeOptimization::ObjectiveFunctionData::evalInteriorObjectiveGradientU ( MatrixDouble &  coords, boost::shared_ptr< MatrixDouble >  u_ptr, boost::shared_ptr< MatrixDouble >  stress_ptr, boost::shared_ptr< MatrixDouble >  strain_ptr, boost::shared_ptr< MatrixDouble >  o_ptr, bool  symmetrize = true  )

pure virtual

Evaluate gradient of objective function w.r.t. displacement: ∂f/∂u.

numberOfModes()

virtual MoFEMErrorCode ShapeOptimization::ObjectiveFunctionData::numberOfModes ( int  block_id, int &  modes  )

pure virtual

Return number of topology optimization modes for given block.

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The documentation for this struct was generated from the following file:

• tutorials/vec-7_shape_optimisation/src/ObjectiveFunctionData.hpp