#include "b2failure_criterion.H"

Inheritance diagram for b2000::b2dbv3::FailureCriterion:

Collaboration diagram for b2000::b2dbv3::FailureCriterion:

[legend]

Public Types
enum
	Whether the criterion is based on stress or strain.

Public Member Functions
virtual int	get_type () const =0
	Returns STRAIN or STRESS.

virtual double	process_stress (const double stress_mat[6], b2000::GradientContainer *gradient_container) const

virtual double	process_strain (const double strain_mat[6], const bool engineering, b2000::GradientContainer *gradient_container) const

Public Member Functions inherited from b2000::Object
virtual const std::string &	get_object_name () const

virtual	~Object ()

Static Protected Attributes
static const b2000::GradientContainer::FieldDescription	fi_descr

Additional Inherited Members
Static Public Attributes inherited from b2000::Object
static ObjectType	type

Detailed Description

Base class for evaluating failure criteria for elastic materials. Classes implementing a failure criterion need to overload the init() and get_type() functions, and either the process_stress() or the process_strain() function.

Member Function Documentation

◆ process_strain()

virtual double b2000::b2dbv3::FailureCriterion::process_strain	(	const double	strain_mat[6],
		const bool	engineering,
		b2000::GradientContainer *	gradient_container
	)		const

inlinevirtual

Evaluate the (strain) criterion and store the results in the GradientContainer.

Parameters

strain_mat	Strain tensor in the material reference frame, with the components in the order [11, 22, 33, 12, 23, 13].
engineering	Indicates whether the shear components are engineering strains (as on the database) or energy-equivalent strains (as used within the element formulations). In the latter case, the shear components will be divided by two when calculating the criterion.

Returns: The failure index. A value >= 1 means failure.

◆ process_stress()

virtual double b2000::b2dbv3::FailureCriterion::process_stress	(	const double	stress_mat[6],
		b2000::GradientContainer *	gradient_container
	)		const

inlinevirtual

Evaluate the (stress) criterion and store the results in the GradientContainer.

Parameters

stress_mat Stress tensor in the material reference frame, with the components in the order [11, 22, 33, 12, 23, 13].

Returns: The failure index. A value >= 1 means failure.

Member Data Documentation

◆ fi_descr

const b2000::GradientContainer::FieldDescription b2000::b2dbv3::FailureCriterion::fi_descr

staticprotected

Initial value:

= {
      "FAILURE_INDEX",
      "fi",
      "The failure index as calculated by the failure criteria",
      3,
      1,
      -1,
      -1,
      false,
      typeid(double)}

For storage in the FAILURE_INDEX field (should be used by implementations of FailureCriterion in addition to any specific gradient fields).

The documentation for this class was generated from the following files:

io/b2000_db/b2000_db_v3/b2failure_criterion.H
io/b2000_db/b2000_db_v3/b2failure_criterion.C

	b2api B2000++ API Reference Manual, VERSION 4.6

Public Types

Public Member Functions