beam2dspec Class Reference

#include <beam2dspec.h>

List of all members.

Public Member Functions

 beam2dspec (void)
void beam_transf_matrix (double c, double s, matrix &tmat)
void internal_forces (long lcid, long eid, vector &ifor)
void mass_matrix_expl (long eid, long ri, long ci, matrix &mm)
void res_internal_forces (long lcid, long eid, vector &ifor)
void res_mainip_strains (long lcid, long eid)
void res_mainip_stresses (long lcid, long eid)
void res_mass_matrix (long eid, matrix &mm)
void res_stiffness_matrix (long eid, matrix &sm)
void stiffness_matrix_expl (long eid, long ri, long ci, matrix &sm)
void strains (long eid, long lcid)
void stresses (long eid, long lcid)
void transf_matrix (ivector &nodes, matrix &tmat)
 ~beam2dspec (void)

Public Attributes

long * cncomp
 array containing cumulative numbers of components of stress and strain tensors
long intordism
 order of integration of initial stress matrix
long intordmm
 order of integration of mass matrix
long napfun
 number of approximated functions on the element
long nb
 number of blocks
long * ncomp
 array containing numbers of components of stress and strain tensors
long ndofe
 number of DOFs on the element
long ** nip
 array of numbers of integration points in sets
long nne
 number of nodes on one element
strastrestate ssst
 stress/strain state
long tncomp
 total number of components of stress and strain tensors
long tnip
 total number of integration points;

Detailed Description

class beam2dspec defines beam element for 2D analysis

JK

Definition at line 16 of file beam2dspec.h.

Constructor & Destructor Documentation

beam2dspec ( void   ) 

Definition at line 12 of file beam2dspec.cpp.

References cncomp, intordism, intordmm, napfun, nb, ncomp, ndofe, nip, nne, plbeam, ssst, tncomp, and tnip.

~beam2dspec ( void   ) 

Definition at line 34 of file beam2dspec.cpp.

References nb, and nip.

Member Function Documentation

void beam_transf_matrix ( double  c,
double  s,
matrix &  tmat 
)

function assembles transformation matrix x_g = T x_l

Parameters:
c,s - cosine and sine of beam angle
tmat - transformation matrix

JK, 3.2.2002

Definition at line 85 of file beam2dspec.cpp.

References fillm().

Referenced by mass_matrix_expl(), res_mainip_stresses(), stiffness_matrix_expl(), and strains().

void internal_forces ( long  lcid,
long  eid,
vector &  ifor 
)

function computes internal forces

Parameters:
lcid - load case id
eid - element id
ifor - vector of internal forces

12.8.2001

Definition at line 258 of file beam2dspec.cpp.

References vector::a, eldispl(), mechtop::elements, fillv(), mechtop::give_node_coord2dxz(), intpoints::idm, mechmat::ip, element::ipp, Mm, Mt, ndofe, nne, and tncomp.

Referenced by res_internal_forces().

void mass_matrix_expl ( long  eid,
long  ri,
long  ci,
matrix &  mm 
)

function computes mass matrix of 2D beam element

Parameters:
eid - number of element
ri,ci - row and column indices
mm - mass matrix

JK, 3.2.200

Definition at line 175 of file beam2dspec.cpp.

References beam_transf_matrix(), mechtop::elements, fillm(), g, mechcrsec::give_area(), mechcrsec::give_densitye(), mechtop::give_elemnodes(), mechcrsec::give_mominer(), mechtop::give_node_coord2dxz(), mechcrsec::give_shearcoeff(), glmatrixtransf(), element::ipp, lgmatrixtransf(), mechtop::locsystems(), mechmat::matstiff(), Mc, Mm, Mt, ndofe, nne, nodes, tncomp, and transf_matrix().

Referenced by res_mass_matrix().

void res_internal_forces ( long  lcid,
long  eid,
vector &  ifor 
)

Definition at line 303 of file beam2dspec.cpp.

References internal_forces().

void res_mainip_strains ( long  lcid,
long  eid 
)

function stores end displacements and rotations to integration points

JK, 24.5.2006

Definition at line 402 of file beam2dspec.cpp.

References allocm(), allocv(), copyv(), destrm(), destrv(), eldispl(), mechtop::elements, element::ipp, lgvectortransf(), mechtop::locsystems(), Mm, Mt, ndofe, nne, nodes, mechmat::storestrain(), and transf_matrix().

void res_mainip_stresses ( long  lcid,
long  eid 
)

function computes

Parameters:
lcid - load case id
eid - element id

JK, 10.10.2005

Definition at line 444 of file beam2dspec.cpp.

References allocv(), beam_transf_matrix(), copyv(), destrv(), eldispl(), mechtop::elements, mechtop::give_elemnodes(), mechtop::give_node_coord2dxz(), mechmat::ip, element::ipp, lgvectortransf(), mechtop::locsystems(), Mm, Mt, mxv(), ndofe, nne, nodes, stiffness_matrix_expl(), intpoints::stress, and transf_matrix().

void res_mass_matrix ( long  eid,
matrix &  mm 
)

Definition at line 161 of file beam2dspec.cpp.

References mass_matrix_expl().

void res_stiffness_matrix ( long  eid,
matrix &  sm 
)

Definition at line 101 of file beam2dspec.cpp.

References stiffness_matrix_expl().

void stiffness_matrix_expl ( long  eid,
long  ri,
long  ci,
matrix &  sm 
)

function computes stiffness matrix of plane stress rectangular finite element with bilinear approximation functions

Parameters:
eid - number of element
ri,ci - row and column indices
sm - stiffness matrix

JK, 3.2.2002

Definition at line 117 of file beam2dspec.cpp.

References beam_transf_matrix(), mechtop::elements, fillm(), mechtop::give_elemnodes(), mechtop::give_node_coord2dxz(), glmatrixtransf(), intpoints::idm, mechmat::ip, element::ipp, lgmatrixtransf(), mechtop::locsystems(), Mm, Mt, ndofe, nne, nodes, tncomp, and transf_matrix().

Referenced by res_mainip_stresses(), res_stiffness_matrix(), and stresses().

void strains ( long  eid,
long  lcid 
)

function computes strains

Parameters:
eid - element id
lcid - load case id

20.2.2002

Definition at line 354 of file beam2dspec.cpp.

References beam_transf_matrix(), copyv(), eldispl(), mechtop::elements, mechtop::give_elemnodes(), mechtop::give_node_coord2dxz(), glvectortransf(), element::ipp, lgvectortransf(), mechtop::locsystems(), Mm, Mt, ndofe, nne, nodes, rl, mechmat::storestrain(), and transf_matrix().

void stresses ( long  eid,
long  lcid 
)

function computes internal forces

Parameters:
lcid - load case id
eid - element id
ifor - vector of internal forces

12.8.2001

Definition at line 318 of file beam2dspec.cpp.

References vector::a, eldispl(), mechtop::elements, f, mechtop::give_node_coord2dxz(), intpoints::idm, mechmat::ip, element::ipp, Mm, Mt, mxv(), ndofe, nne, stiffness_matrix_expl(), intpoints::stress, and tncomp.

void transf_matrix ( ivector &  nodes,
matrix &  tmat 
)

function assembles transformation matrix x_g = T x_l

Parameters:
nodes - array containing node numbers
tmat - transformation matrix

JK, 3.2.2002

Definition at line 54 of file beam2dspec.cpp.

References node::e1, node::e2, fillm(), matrix::m, Mt, ivector::n, mechtop::nodes, and node::transf.

Referenced by mass_matrix_expl(), res_mainip_strains(), res_mainip_stresses(), stiffness_matrix_expl(), and strains().

Member Data Documentation

long* cncomp

array containing cumulative numbers of components of stress and strain tensors

Definition at line 44 of file beam2dspec.h.

Referenced by beam2dspec().

long intordism

order of integration of initial stress matrix

Definition at line 50 of file beam2dspec.h.

Referenced by beam2dspec().

long intordmm

order of integration of mass matrix

Definition at line 48 of file beam2dspec.h.

Referenced by beam2dspec().

long napfun

number of approximated functions on the element

Definition at line 46 of file beam2dspec.h.

Referenced by beam2dspec(), and mechtop::give_napfun().

long nb

number of blocks

Definition at line 56 of file beam2dspec.h.

Referenced by beam2dspec(), mechtop::give_nb(), mechtop::give_nb_te(), and ~beam2dspec().

long* ncomp

array containing numbers of components of stress and strain tensors

Definition at line 42 of file beam2dspec.h.

Referenced by beam2dspec().

long ndofe

number of DOFs on the element

Definition at line 36 of file beam2dspec.h.

Referenced by beam2dspec(), mechtop::give_ndofe(), internal_forces(), mass_matrix_expl(), res_mainip_strains(), res_mainip_stresses(), stiffness_matrix_expl(), strains(), and stresses().

long** nip

array of numbers of integration points in sets

Definition at line 52 of file beam2dspec.h.

Referenced by beam2dspec(), mechtop::give_nip(), and ~beam2dspec().

long nne

number of nodes on one element

Definition at line 38 of file beam2dspec.h.

Referenced by beam2dspec(), mechtop::give_nne(), internal_forces(), mass_matrix_expl(), res_mainip_strains(), res_mainip_stresses(), stiffness_matrix_expl(), strains(), and stresses().

strastrestate ssst

stress/strain state

Definition at line 58 of file beam2dspec.h.

Referenced by beam2dspec(), and mechtop::give_ssst().

long tncomp

total number of components of stress and strain tensors

Definition at line 40 of file beam2dspec.h.

Referenced by beam2dspec(), mechtop::give_ncomp(), mechtop::give_tncomp(), internal_forces(), mass_matrix_expl(), stiffness_matrix_expl(), and stresses().

long tnip

total number of integration points;

Definition at line 54 of file beam2dspec.h.

Referenced by beam2dspec(), and mechtop::give_tnip().

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