shelltr Class Reference

#include <shelltr.h>

Public Member Functions
void	compute_nlstress (long lcid, long eid)
void	compute_nlstressincr (long lcid, long eid)
void	inicipval (long eid, long ri, long ci, matrix &nodval, inictype *ictn)
void	nod_strains_ip (long lcid, long eid)
void	nod_stresses_ip (long lcid, long eid)
void	res_internal_forces (long lcid, long eid, vector &ifor)
void	res_ip_strains (long lcid, long eid)
void	res_ip_stresses (long lcid, long eid)
void	res_stiffness_matrix (long eid, matrix &sm)
	shelltr (void)
void	strains (long lcid, long eid)
void	stresses (long lcid, long eid)
void	tran_mat (vector &x, vector &y, matrix &tran, vector &gx, vector &gy, vector &gz)
void	tran_mat_old (vector &x, vector &y, matrix &tran, vector &gx, vector &gy, vector &gz)
void	transf_matrix (ivector &nodes, matrix &tmat)
	~shelltr (void)
Public Attributes
long *	dofe
long **	intordsm
long	napfun
long	nb
long *	ncompd
long *	ncomps
long	ndofe
long	ned
long **	nip
long	nne
long	nned
strastrestate	ssst
long	tncomp
long	tncompd
long	tncomps
long	tnip
	total number of integration points on element

Detailed Description

shell triangular element resulting matrices are composed from plane triangular element with rotational degrees of freedom and from constant curve triangle

Definition at line 15 of file shelltr.h.

Constructor & Destructor Documentation

shelltr ( void )

Definition at line 12 of file shelltr.cpp.

References Dkt, dofe, dktelem::intordsm, planeelemrotlt::intordsm, intordsm, napfun, dktelem::nb, planeelemrotlt::nb, nb, ncompd, ncomps, dktelem::ndofe, planeelemrotlt::ndofe, ndofe, ned, dktelem::nip, planeelemrotlt::nip, nip, nne, nned, Perlt, shell, ssst, dktelem::tncomp, planeelemrotlt::tncomp, tncomp, tncompd, tncomps, and tnip.

~shelltr ( void )

Definition at line 86 of file shelltr.cpp.

References dofe, intordsm, nb, ncompd, ncomps, and nip.

Member Function Documentation

void compute_nlstress	(	long	lcid,
		long	eid
	)

function computes stresses

Parameters:

	lcid	- load case id
	eid	- element id

JK, 26.9.2008

Definition at line 481 of file shelltr.cpp.

References dktelem::compute_nlstress(), planeelemrotlt::compute_nlstress(), Dkt, and Perlt.

void compute_nlstressincr	(	long	lcid,
		long	eid
	)

function computes correct increments of stresses at integration points on element

Parameters:

	lcid	- number of load case
	eid	- element id

JK, 23.9.2008

Definition at line 496 of file shelltr.cpp.

References dktelem::compute_nlstressincr(), planeelemrotlt::compute_nlstressincr(), Dkt, and Perlt.

void inicipval	(	long	eid,
		long	ri,
		long	ci,
		matrix &	nodval,
		inictype *	ictn
	)

The function computes initial values of the given quantities at each integration point of the element from the nodal values given by the parameter nodval. Initial condition types must be the same for all nodes of the element.

Parameters:

	eid	- element id
	ri	- block row index
	ci	- block column index
	nodval	- nodal values of particular initial conditions. nodval[i][j] represents value of j-th initial condition at i-th node of the given element.
	ictn	- array of types of initial condition for each node of element. The type of initial condition determines which values are being specified in the node. (ictn[i] & inistrain) returns nonzero if nodal values of initial strains are specified (ictn[i] & inistress) returns nonzero if nodal values of initial stresses are specified (ictn[i] & iniother) returns nonzero if nodal values of initial values of eqother array are specified (ictn[i] & inicond) returns nonzero if nodal values of other initial conditions are specified

The function does not return anything.

Created by Tomas Koudelka 2004 Revised by Tomas Koudelka 03.2012

Definition at line 678 of file shelltr.cpp.

References vector::a, allocv(), destrv(), mechtop::elements, gauss_points_tr(), mechmat::ic, inicond, iniother, inistrain, inistress, intordsm, mechmat::ip, element::ipp, memset(), Mm, Mt, matrix::n, nb, intpoints::ncompeqother, intpoints::ncompstr, nne, and print_err().

Referenced by mechbclc::inicipval().

void nod_strains_ip	(	long	lcid,
		long	eid
	)

Definition at line 558 of file shelltr.cpp.

References destrv(), mechtop::elements, mechtop::give_elemnodes(), mechtop::give_node_coord3d(), mechmat::givestrain(), intordsm, element::ipp, loc_glob_tens_trans(), Mm, Mt, vector::n, nne, nod, mechtop::nodes, nodip_planelt(), node::storestrain(), tncomp, tncomps, and tran_mat().

Referenced by compute_nodestrains().

void nod_stresses_ip	(	long	lcid,
		long	eid
	)

Definition at line 638 of file shelltr.cpp.

References Dkt, dktelem::nod_stresses_ip(), planeelemrotlt::nod_stresses_ip(), and Perlt.

Referenced by compute_nodestresses().

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

function computes resulting internal forces

Parameters:

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

JK, 26.9.2008

Definition at line 512 of file shelltr.cpp.

References vector::a, allocv(), copyv(), destrv(), Dkt, dofe, mechtop::give_elemnodes(), mechtop::give_node_coord3d(), glvectortransf(), dktelem::internal_forces(), planeelemrotlt::internal_forces(), locglob(), mechtop::locsystems(), Mt, ndofe, nne, nodes, Perlt, tran_mat(), and transf_matrix().

Referenced by elem_internal_forces().

void res_ip_strains	(	long	lcid,
		long	eid
	)

function computes strains at integration points of element

Parameters:

	lcid	- load case id
	eid	- element id

JK, 23.9.2008

Definition at line 390 of file shelltr.cpp.

References vector::a, allocm(), allocv(), copyv(), destrm(), destrv(), Dkt, dofe, eldispl(), mechtop::give_elemnodes(), mechtop::give_node_coord3d(), globloc(), glvectortransfblock(), dktelem::ip_strains(), planeelemrotlt::ip_strains(), lgvectortransf(), mechtop::locsystems(), Mt, ndofe, nne, nodes, Perlt, tran_mat(), and transf_matrix().

Referenced by compute_ipstrains().

void res_ip_stresses	(	long	lcid,
		long	eid
	)

function computes stresses at integration points

Parameters:

	lcid	- load case id
	eid	- element id

JK, 26.9.2008

Definition at line 467 of file shelltr.cpp.

References dktelem::compute_nlstress(), planeelemrotlt::compute_nlstress(), Dkt, and Perlt.

Referenced by compute_ipstresses().

void res_stiffness_matrix	(	long	eid,
		matrix &	sm
	)

function assembles stiffness matrix of triangular shell element

Parameters:

	eid	- element id
	sm	- stiffness matrix

4.5.2002

Definition at line 318 of file shelltr.cpp.

References allocm(), destrm(), Dkt, dofe, fillm(), mechtop::give_elemnodes(), mechtop::give_node_coord3d(), glmatrixtransf(), lgmatrixtransfblock(), mechtop::locsystems(), mat_localize(), Mt, ndofe, nne, nodes, Perlt, dktelem::stiffness_matrix(), planeelemrotlt::stiffness_matrix(), tran_mat(), and transf_matrix().

Referenced by stiffmat().

void strains	(	long	lcid,
		long	eid
	)

Definition at line 633 of file shelltr.cpp.

void stresses	(	long	lcid,
		long	eid
	)

Definition at line 650 of file shelltr.cpp.

Referenced by computestresses().

void tran_mat	(	vector &	x,
		vector &	y,
		matrix &	tran,
		vector &	gx,
		vector &	gy,
		vector &	gz
	)

function assembles transformation matrix T between coordinate system defined on element and global coordinate system

T x_local = x_global x_local = T^T x_global

direction vector denotes vector defining local coordinate axis

Parameters:

	x,y	- vectors of nodal coordinates in element coordinate system
	tran	- tranformation matrix T
	gx,gy,gz	- vectors of nodal coordinates in global coordinate systems

JK, 1.10.2008

Definition at line 117 of file shelltr.cpp.

References p.

Referenced by nod_strains_ip(), res_internal_forces(), res_ip_strains(), and res_stiffness_matrix().

void tran_mat_old	(	vector &	x,
		vector &	y,
		matrix &	tran,
		vector &	gx,
		vector &	gy,
		vector &	gz
	)

function assembles transformation matrix between coordinate system defined on element and global coordinate system transformation deals with coordinates

transformation matrix from local to global systems x,y,z In vectors s are global coordinates of Nodes 1 , 2 , 3 Vector local s. s.( edge 1-2 = x' ) in glob. s. s.

v(g) = tran * v(l) t t v(l) = tran * v(g) = v(g) * tran

t sm(g) = tran * sm(l) * tran t sm(l) = tran * sm(g) * tran

Definition at line 211 of file shelltr.cpp.