inp::MatData Struct Reference

Structure for elastic properties and fracture properties. More...

#include <materialDeck.h>

Collaboration diagram for inp::MatData:

Public Member Functions
	MatData ()
	Constructor.
	MatData (const MatData &md)
	Copy constructor.
void	readFromJson (const json &j)
std::string	printStr (int nt=0, int lvl=0) const
	Returns the string containing printable information about the object.
void	print (int nt=0, int lvl=0) const
	Prints the information about the object.
Conversion methods
double	toNu (double lambda, double mu)
	Compute Poisson's ratio from Lame parameters.
double	toNuEG (double E, double G)
	Compute Poisson's ratio from Young's and Shear modulus.
double	toE (double K, double nu)
	Compute Young's modulus E from Bulk modulus K and Poisson's ratio nu.
double	toK (double E, double nu)
	Compute Bulk modulus K from Young's modulus K and Poisson's ratio nu.
double	toLambdaE (double E, double nu)
	Compute Lame first parameter lambda from Young's modulus E and Poisson's ratio nu.
double	toLambdaK (double K, double nu)
	Compute Lame first parameter lambda from Bulk modulus K and Poisson's ratio nu.
double	toGE (double E, double nu)
	Compute shear modulus from Young's modulus E and Poisson's ratio nu.
double	toGK (double K, double nu)
	Compute shear modulus from Bulk modulus K and Poisson's ratio nu.
double	toELambda (double lambda, double nu)
	Compute Young's modulus E from Lame first parameter lambda and Poisson's ratio nu.
double	toGc (double KIc, double nu, double E)
	Compute critical energy release rate Gc from critical stress-intensity factor KIc, Poisson's ratio nu, and Young's modulus E.
double	toKIc (double Gc, double nu, double E)
	Compute critical stress-intensity factor KIc from critical energy release rate Gc, Poisson's ratio \( nu\), and Young's modulus E.

Static Public Member Functions
static const std::vector< Field< MatData > > &	fields ()
	Reads from json object.

Data Fields
Elastic material properties
double	d_E
	Young's elastic modulus.
double	d_G
	Shear modulus or Lame second parameter.
double	d_K
	Bulk modulus.
double	d_nu
	Poisson's ratio.
double	d_lambda
	Lame first parameter.
double	d_mu
	Lame second parameter.
Fracture properties
double	d_KIc
	Critical stress intensity factor.
double	d_Gc
	Critical energy release rate.

Detailed Description

Structure for elastic properties and fracture properties.

Definition at line 24 of file materialDeck.h.

Constructor & Destructor Documentation

MatData() [1/2]

inp::MatData::MatData ( )

inline

Constructor.

Definition at line 67 of file materialDeck.h.

      : d_E(-1.), d_G(-1.), d_K(-1.), d_nu(-1.), d_lambda(-1.), d_mu(-1.),
        d_KIc(-1.), d_Gc(-1.){};

MatData() [2/2]

inp::MatData::MatData ( const MatData &  md )

inline

Copy constructor.

Parameters

md	Another MatData object

Definition at line 76 of file materialDeck.h.

      : d_E(md.d_E), d_G(md.d_G), d_K(md.d_K), d_nu(md.d_nu),
        d_lambda(md.d_lambda), d_mu(md.d_mu), d_KIc(md.d_KIc), d_Gc(md.d_Gc){};

Member Function Documentation

fields()

static const std::vector< Field< MatData > > & inp::MatData::fields ( )

inlinestatic

Reads from json object.

The elastic constants, declared once

Each is read from the material block itself rather than a sub-block. A constant that is not given keeps -1, which the material classes read as absent and derive from the others.

Returns

fields The field table

Definition at line 92 of file materialDeck.h.

                                                   {
    static const std::vector<Field<MatData>> f = {
        field(&MatData::d_E, "E", -1., "Young's modulus"),
        field(&MatData::d_G, "G", -1., "Shear modulus"),
        field(&MatData::d_K, "K", -1., "Bulk modulus"),
        field(&MatData::d_lambda, "Lambda", -1., "First Lame parameter"),
        field(&MatData::d_mu, "Mu", -1., "Second Lame parameter"),
        field(&MatData::d_nu, "Poisson_Ratio", -1., "Poisson ratio"),
        field(&MatData::d_Gc, "Gc", -1., "Critical energy release rate"),
        field(&MatData::d_KIc, "KIc", -1., "Critical stress intensity factor"),
    };
    return f;
  }

References d_E, d_G, d_Gc, d_K, d_KIc, d_lambda, d_mu, d_nu, and inp::field().

Referenced by readFromJson().

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print()

void inp::MatData::print ( int  nt = 0, int  lvl = 0  ) const

inline

Prints the information about the object.

Parameters

nt	Number of tabs to append before printing
lvl	Information level (higher means more information)

Definition at line 143 of file materialDeck.h.

{ std::cout << printStr(nt, lvl); }

References printStr().

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printStr()

std::string inp::MatData::printStr ( int  nt = 0, int  lvl = 0  ) const

inline

Returns the string containing printable information about the object.

Parameters

nt	Number of tabs to append before printing
lvl	Information level (higher means more information)

Returns

string String containing printable information about the object

Definition at line 119 of file materialDeck.h.

                                                    {
 
    auto tabS = util::io::getTabS(nt);
    std::ostringstream oss;
    oss << tabS << "------- MatData --------" << std::endl << std::endl;
    oss << tabS << "Young's modulus = " << d_E << std::endl;
    oss << tabS << "Shear modulus = " << d_G << std::endl;
    oss << tabS << "Bulk modulus = " << d_K << std::endl;
    oss << tabS << "Poisson ratio = " << d_nu << std::endl;
    oss << tabS << "Lame parameter Lambda = " << d_lambda << std::endl;
    oss << tabS << "Lame parameter Mu = " << d_mu << std::endl;
    oss << tabS << "Critical stress intensity factor = " << d_KIc << std::endl;
    oss << tabS << "Critical energy release rate = " << d_Gc << std::endl;
    oss << tabS << std::endl;
 
    return oss.str();
  }

References d_E, d_G, d_Gc, d_K, d_KIc, d_lambda, d_mu, d_nu, and util::io::getTabS().

Referenced by print(), and inp::MaterialDeck::printStr().

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readFromJson()

void inp::MatData::readFromJson ( const json &  j )

inline

Definition at line 106 of file materialDeck.h.

                                   {
    if (j.empty())
      return;
    readFields(*this, j, fields());
  }

References fields(), and inp::readFields().

Referenced by inp::MaterialDeck::readFromJson().

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toE()

double inp::MatData::toE ( double  K, double  nu  )

inline

Compute Young's modulus E from Bulk modulus K and Poisson's ratio nu.

Parameters

K	Bulk modulus
nu	Poisson's ratio

Returns

E Young's modulus

Definition at line 172 of file materialDeck.h.

{ return K * (3. * (1. - 2. * nu)); }

Referenced by material::RnpMaterial::computeParameters(), material::PmbMaterial::computeParameters(), material::PdElastic::computeParameters(), and material::PdState::computeParameters().

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toELambda()

double inp::MatData::toELambda ( double  lambda, double  nu  )

inline

Compute Young's modulus E from Lame first parameter lambda and Poisson's ratio nu.

Parameters

lambda	Lame first parameter
nu	Poisson's ratio

Returns

E Young's modulus

Definition at line 227 of file materialDeck.h.

                                             {
    return lambda * (1. + nu) * (1. - 2. * nu) / nu;
  }

toGc()

double inp::MatData::toGc ( double  KIc, double  nu, double  E  )

inline

Compute critical energy release rate Gc from critical stress-intensity factor KIc, Poisson's ratio nu, and Young's modulus E.

Below conversion from KIc to Gc assumes plane-stress condition. For plane-stress condition, we need to modify the Young's modulus \( E\) to \( \frac{E}{1 - \nu^2} \) where \( \nu\) is the Poisson's ratio.

Parameters

KIc	Critical stress-intensity factor
nu	Poisson's ratio
E	Young's modulus

Returns

Gc Critical energy release rate

Definition at line 244 of file materialDeck.h.

{ return KIc * KIc / E; }

Referenced by material::RnpMaterial::computeParameters(), material::PmbMaterial::computeParameters(), and material::PdState::computeParameters().

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toGE()

double inp::MatData::toGE ( double  E, double  nu  )

inline

Compute shear modulus from Young's modulus E and Poisson's ratio nu.

Parameters

E	Young's modulus
nu	Poisson's ratio

Returns

G Shear modulus

Definition at line 208 of file materialDeck.h.

{ return E / (2. * (1. + nu)); }

Referenced by material::RnpMaterial::computeParameters(), material::PmbMaterial::computeParameters(), material::PdElastic::computeParameters(), and material::PdState::computeParameters().

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toGK()

double inp::MatData::toGK ( double  K, double  nu  )

inline

Compute shear modulus from Bulk modulus K and Poisson's ratio nu.

Parameters

K	Bulk modulus
nu	Poisson's ratio

Returns

G Shear modulus

Definition at line 216 of file materialDeck.h.

                                   {
    return 3. * K * (1. - 2. * nu) / (2. * (1. + nu));
  }

toK()

double inp::MatData::toK ( double  E, double  nu  )

inline

Compute Bulk modulus K from Young's modulus K and Poisson's ratio nu.

Parameters

E	Young's modulus
nu	Poisson's ratio

Returns

K Bulk modulus

Definition at line 180 of file materialDeck.h.

{ return E / (3. * (1. - 2. * nu)); }

Referenced by material::RnpMaterial::computeParameters(), material::PmbMaterial::computeParameters(), material::PdElastic::computeParameters(), and material::PdState::computeParameters().

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toKIc()

double inp::MatData::toKIc ( double  Gc, double  nu, double  E  )

inline

Compute critical stress-intensity factor KIc from critical energy release rate Gc, Poisson's ratio \( nu\), and Young's modulus E.

Below conversion from Gc to KIc assumes plane-stress condition. For plane-stress condition, we need to modify the Young's modulus \( E\) to \( \frac{E}{1 - \nu^2} \) where \( \nu\) is the Poisson's ratio.

Parameters

Gc	Critical energy release rate
nu	Poisson's ratio
E	Young's modulus

Returns

KIc Critical stress-intensity factor

Definition at line 259 of file materialDeck.h.

{ return std::sqrt(Gc * E); }

Referenced by material::RnpMaterial::computeParameters(), material::PmbMaterial::computeParameters(), and material::PdState::computeParameters().

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toLambdaE()

double inp::MatData::toLambdaE ( double  E, double  nu  )

inline

Compute Lame first parameter lambda from Young's modulus E and Poisson's ratio nu.

Parameters

E	Young's modulus
nu	Poisson's ratio

Returns

lambda Lame first parameter

Definition at line 189 of file materialDeck.h.

                                        {
    return E * nu / ((1. + nu) * (1. - 2. * nu));
  }

Referenced by material::RnpMaterial::computeParameters(), material::PmbMaterial::computeParameters(), material::PdElastic::computeParameters(), and material::PdState::computeParameters().

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toLambdaK()

double inp::MatData::toLambdaK ( double  K, double  nu  )

inline

Compute Lame first parameter lambda from Bulk modulus K and Poisson's ratio nu.

Parameters

K	Bulk modulus
nu	Poisson's ratio

Returns

lambda Lame first parameter

Definition at line 200 of file materialDeck.h.

{ return 3. * K * nu / (1. + nu); }

toNu()

double inp::MatData::toNu ( double  lambda, double  mu  )

inline

Compute Poisson's ratio from Lame parameters.

Parameters

lambda	Lame first parameter
mu	Lame second parameter

Returns

nu Poisson's ratio

Definition at line 156 of file materialDeck.h.

{ return lambda * 0.5 / (lambda + mu); }

toNuEG()

double inp::MatData::toNuEG ( double  E, double  G  )

inline

Compute Poisson's ratio from Young's and Shear modulus.

Parameters

E	Youngs modulus
G	Shear modulus

Returns

nu Poisson's ratio

Definition at line 164 of file materialDeck.h.

{ return E * 0.5 / G - 1.; }

Field Documentation

d_E

double inp::MatData::d_E

Young's elastic modulus.

Definition at line 32 of file materialDeck.h.

Referenced by material::RnpMaterial::computeParameters(), material::PmbMaterial::computeParameters(), material::PdElastic::computeParameters(), material::PdState::computeParameters(), fields(), and printStr().

d_G

double inp::MatData::d_G

Shear modulus or Lame second parameter.

Definition at line 35 of file materialDeck.h.

Referenced by material::RnpMaterial::computeParameters(), material::PmbMaterial::computeParameters(), material::PdElastic::computeParameters(), material::PdState::computeParameters(), fields(), inp::MaterialDeck::MaterialDeck(), and printStr().

d_Gc

double inp::MatData::d_Gc

Critical energy release rate.

Definition at line 60 of file materialDeck.h.

Referenced by material::RnpMaterial::computeParameters(), material::PmbMaterial::computeParameters(), material::PdState::computeParameters(), fields(), inp::MaterialDeck::MaterialDeck(), and printStr().

d_K

double inp::MatData::d_K

Bulk modulus.

Definition at line 38 of file materialDeck.h.

Referenced by material::RnpMaterial::computeParameters(), material::PmbMaterial::computeParameters(), material::PdElastic::computeParameters(), material::PdState::computeParameters(), fields(), inp::MaterialDeck::MaterialDeck(), and printStr().

d_KIc

double inp::MatData::d_KIc

Critical stress intensity factor.

Definition at line 57 of file materialDeck.h.

Referenced by material::RnpMaterial::computeParameters(), material::PmbMaterial::computeParameters(), material::PdState::computeParameters(), fields(), and printStr().

d_lambda

double inp::MatData::d_lambda

Lame first parameter.

Definition at line 44 of file materialDeck.h.

Referenced by material::RnpMaterial::computeParameters(), material::PmbMaterial::computeParameters(), material::PdElastic::computeParameters(), material::PdState::computeParameters(), fields(), and printStr().

d_mu

double inp::MatData::d_mu

Lame second parameter.

Definition at line 47 of file materialDeck.h.

Referenced by material::RnpMaterial::computeParameters(), material::PmbMaterial::computeParameters(), material::PdElastic::computeParameters(), material::PdState::computeParameters(), fields(), and printStr().

d_nu

double inp::MatData::d_nu

Poisson's ratio.

Definition at line 41 of file materialDeck.h.

Referenced by material::RnpMaterial::computeParameters(), material::PmbMaterial::computeParameters(), material::PdElastic::computeParameters(), material::PdState::computeParameters(), fields(), and printStr().

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

• /home/user/project/src/inp/materialDeck.h