TangentOutputModule Class Reference

Module for tangent elastic property calculation via homogenization. More...

#include "TangentOutputModule.h"

Inheritance diagram for TangentOutputModule:

Collaboration diagram for TangentOutputModule:

Public Member Functions
	TangentOutputModule (const String &name="tangentOutput")
	Constructor.
virtual Status	init (const Properties &conf, const Properties &props, const Properties &globdat) override
	Initialize tangent property calculation.
virtual Status	run (const Properties &globdat) override
	Run tangent property calculation.
virtual void	shutdown (const Properties &globdat) override
	Shutdown module and finalize output.

Static Public Member Functions
static Ref< Module >	makeNew (const String &name, const Properties &conf, const Properties &props, const Properties &globdat)
	Factory method for creating new instances.
static void	declare ()
	Register module type with factory.

Static Public Attributes
Property identifiers
static const char *	TYPE_NAME = "TangentOutput"
	Module type name.

Protected Member Functions
virtual	~TangentOutputModule ()
	Protected destructor.

Detailed Description

Computes effective elastic properties of heterogeneous materials using periodic boundary conditions. Supports two computation modes:

• Finite differences: Applies strain perturbations and measures stress response
• Matrix condensation: Direct extraction from tangent stiffness matrix *(NOT IMPLEMENTED)*

The module performs strain-stress analysis on boundary nodes and calculates homogenized material properties for multi-scale modeling applications.

Note

Only for static analyses with an implicit (Newton) solver. The finite-difference perturbations are solved with an internal NonlinModule; combined with an explicit integrator, output modules would read the internal force published for the committed state instead of the perturbed one, and the tangent would be zero. run() therefore refuses to work when such a published force is present.

Constructor & Destructor Documentation

TangentOutputModule()

TangentOutputModule::TangentOutputModule ( const String &  name = "tangentOutput" )

explicit

Parameters

[in]

name

Module name (default: "tangentOutput")

~TangentOutputModule()

TangentOutputModule::~TangentOutputModule ( )

protectedvirtual

Member Function Documentation

declare()

void TangentOutputModule::declare ( )

static

init()

Module::Status TangentOutputModule::init ( const Properties &  conf, const Properties &  props, const Properties &  globdat  )

overridevirtual

Parameters

[out]	conf	Configuration properties (output)
[in]	props	User properties
[in]	globdat	Global data container

Returns

Module status

makeNew()

Ref< Module > TangentOutputModule::makeNew ( const String &  name, const Properties &  conf, const Properties &  props, const Properties &  globdat  )

static

Parameters

[in]	name	Module name
[out]	conf	Configuration properties (output)
[in]	props	User properties
[in]	globdat	Global data container

Returns

New module instance

run()

Module::Status TangentOutputModule::run ( const Properties &  globdat )

overridevirtual

Parameters

[in]

globdat

Global data container

Returns

Module status

shutdown()

void TangentOutputModule::shutdown ( const Properties &  globdat )

overridevirtual

Parameters

[in]

globdat

Global data container

Member Data Documentation

TYPE_NAME

const char * TangentOutputModule::TYPE_NAME = "TangentOutput"

static