Mat Class Reference

Detailed Description

This class stores the information concerning a given material.

The simplest material is rigid for which Mat::rigid == true. The other pointers are set to NULL. The corresponding user command is: material(material-ID, rigid).

The second type of material is linear which corresponds to linear elasticity.
The corresponding user command is: material(material-ID, linear, rho, E, nu, optional: damage-ID) where rho is the reference density, E the Young's modulus, nu the Poisson's ratio, and damage-ID. the ID of the optional damage law.

The third type of material is neo-hookean which corresponds to neo-hookean elasticity. The corresponding user command is similar to that for linear elasticiy materials:
material(material-ID, neo-hookean, rho, E, nu, optional: damage-ID).

The fourth and last type of material is eos-strength which corresponds to an elasto-plastic material the hydrostatic pressure is determined using an equation of state (EOS) while the deviatoric stress is determined using the shear modulus and a flow stress model.
The corresponding user command is: material(material-ID, eos-strength, eos-ID, strength-ID, optional: damage-ID, optional: temperature-ID) where eos-ID, strength-ID, damage-ID and temperature-ID are the ID of the EOS, flow stress model, damage law and temperature law, respectively.
The damage and temperature laws are optional.

Public Member Functions
	Mat (string, int, class EOS *, class Strength *, class Damage *, class Temperature *)
	Creates an elasto-plastic material. More...
	Mat (string, int, double, double, double)
	Creates a linear or Neo-Hookean material. More...
	Mat (string, int)
	Creates a rigid material. More...

Public Attributes
class Damage *	damage
	Pointer to the Damage law.
double	E
	Young's modulus.
class EOS *	eos
	Pointer to the EOS.
double	G
	Shear modulus.
string	id
	Identification name of the material.
double	K
	Bulk modulus.
double	lambda
	1st Lame parameter \(\lambda\)
double	nu
	Poisson's ratio \(\nu\).
double	rho0
	Density in the reference state \(\rho_0\).
bool	rigid
	True if the material is rigid, false otherwise.
double	signal_velocity
	Signal velocity in the reference state \(c_0 = \sqrt{\frac{\lambda+2G}{\rho_0}}\).
class Strength *	strength
	Pointer to the Strength (flow stress rule)
class Temperature *	temp
	Pointer to the Temperature law.
int	type
	Either RIGID, LINEAR, NEO_HOOKEAN, or SHOCK with values from Material::constitutive_model.

Constructor & Destructor Documentation

Mat() [1/3]

Mat::Mat	(	string	id_,
		int	type_,
		class EOS *	eos_,
		class Strength *	strength_,
		class Damage *	damage_,
		class Temperature *	temp_
	)

Creates an elasto-plastic material.

The arguments are: material ID, material type (see Material::constitutive_model) a pointer to an EOS, a pointer to a Strength, a pointer to a Damage, and pointer to a Temperature. The last two can be NULL.

Mat() [2/3]

Mat::Mat	(	string	id_,
		int	type_,
		double	rho0_,
		double	E_,
		double	nu_
	)

Creates a linear or Neo-Hookean material.

The arguments are: material ID, material type (see Material::constitutive_model) the density in the reference state, the Young's modulus and Poisson's ratio.

Mat() [3/3]

Mat::Mat	(	string	id_,
		int	type_
	)

Creates a rigid material.

The arguments are: material ID, material type (see Material::constitutive_model)

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

• material.h
• material.cpp