creepb Class Reference

#include <creepb-f.h>

Public Member Functions
double	approx (vector &areacoord, vector &nodval)
double	approx (vector &areacoord, vector &nodval)
void	b3_law (double &jt, double t0, double t)
void	b3_law (double &jt, double t0, double t)
	creepb (void)
	creepb (void)
void	creepinit (long ipp, double val, nonmechquant nmq)
void	creepinit (long ipp, double val, nonmechquant nmq)
void	get_desht (double &des_hn, double t0, double t)
void	get_desht (double &des_hn, double t0, double t)
void	get_h (long ipp)
void	get_h (long ipp)
void	get_temp (long ipp)
void	get_temp (long ipp)
void	giveirrstrains (long ipp, long ido, vector &epscr)
void	inv_sym (matrix &a)
void	inv_sym (matrix &a)
void	matstiff (matrix &d, long ipp)
void	matstiff (matrix &d, long ipp)
void	matstiffchange (double &qq, long ipp)
void	matstiffkons (double &qq)
void	nlstresses (long ipp, long im, long ido)
void	nlstresses (long ipp)
long	numberOfCreepb ()
void	phase1 (long ipp, long im, long ido)
void	phase1 (long ipp)
void	phase2 (long ipp)
void	phase2 (long ipp)
void	read (XFILE *in)
void	read (FILE *in)
void	seps_time (matrix &screep, vector &sig)
void	seps_time (matrix &screep, vector &sig)
void	updateval ()
void	updateval ()
void	updatevalchange ()
void	updatevalkons ()
	~creepb (void)
	~creepb (void)
Public Attributes
double	a1
double	alfa
matrix	apom
double	c_s
double	ccTime
long *	cncomp
double	ddTime
double	desht
double	e0
vector	ert
double	et
double	fc
double	gc
double	h_s
double	h_slast
long	imat
double	k_d
double	k_s
double	mi
long	napfun
long	nc
long	nRetTime
double	r_s
vector	retTime
double	sc
strastrestate	ss
double	t0
double	t_w
double	tb
double	temp_s
double	temp_slast
double	timemat
double	timeMax
long	tncomp
double	ts
long	type_h
long	type_temp
double	wc

Detailed Description

class contains B3 model of creep

from t0 to t K_s shape factor slab=1.0, cylinder=1.15, sguare prism.=1.25, sphere=1.3, cube=1.55 tb from concrete starts t_w age when drying begins (fc') is 28 day average cilinder strenght fc' [ksi] ksi=1000psi=6.895 MPa(f.e.6.454=44.5MPa)***6.381 (w/c) is water-cement ratio of the mix by weight ***0.43 (s/c) is send-cement ratio of the mix by weight ***3.4 (g/c) is gravel-cement ratio of the mix by weight g/c=a/c-s/c ***1.98 (a/c) is aggregate-cement ratio of the mix by weight a/c=g/c+s/c (a1) is coef. for cements of type I,II a1=1.00, III a1=0.93, IV a1=1.05 ***1.05 (ro) is mass of concrete in [lb/ft3] =16.03 kg/m3 ***156 (k_d) effective cross section thickness D=2*vs_s cs cement content in m3 .. kg/m3 E0=(0.09+1/(1.7*(0.5*ro*ro*fc*1e-4)*(0.5*ro*ro*fc*1e-4))) Et=E0*sqrt(t/(4+0.85*t)) podle ACI Commite 209/II

components of other array: previous total strains (nc components) internal variables describing history (7 x nc components for this model) shrinkage and thermal strain (1 component) previous moisture (1 component) previous temperature (1 component)

class contains B3 model of creep

from t0 to t K_s shape factor slab=1.0, cylinder=1.15, sguare prism.=1.25, sphere=1.3, cube=1.55 tb from concrete starts t_w age when drying begins (fc') is 28 day average cilinder strenght fc' [ksi] ksi=1000psi=6.895 MPa(f.e.6.454=44.5MPa)***6.381 (w/c) is water-cement ratio of the mix by weight ***0.43 (s/c) is send-cement ratio of the mix by weight ***3.4 (g/c) is gravel-cement ratio of the mix by weight g/c=a/c-s/c ***1.98 (a/c) is aggregate-cement ratio of the mix by weight a/c=g/c+s/c (a1) is coef. for cements of type I,II a1=1.00, III a1=0.93, IV a1=1.05 ***1.05 (ro) is mass of concrete in [lb/ft3] =16.03 kg/m3 ***156 (k_d) effective cross section thickness D=2*vs_s cs cement content in m3 .. kg/m3 E0=(0.09+1/(1.7*(0.5*ro*ro*fc*1e-4)*(0.5*ro*ro*fc*1e-4))) Et=E0*sqrt(t/(4+0.85*t)) podle ACI Commite 209/II

components of other array: previous total strains (nc components) internal variables describing history (nrettimes x nc components for this model) shrinkage and thermal strain (1 component) previous moisture (1 component) previous temperature (1 component) total irreversible strains total stresses

Definition at line 34 of file creepb-f.h.

Constructor & Destructor Documentation

creepb ( void )

Definition at line 12 of file creepb-f.cpp.

References alfa, allocm(), allocv(), apom, ccTime, desht, timecontr::endtime(), ert, h_s, k_d, k_s, Mp, nRetTime, retTime, probdesc::timecon, timemat, timeMax, type_h, and type_temp.

~creepb ( void )

Definition at line 39 of file creepb-f.cpp.

creepb ( void )

~creepb ( void )

Member Function Documentation

double approx	(	vector &	areacoord,
		vector &	nodval
	)

double approx	(	vector &	areacoord,
		vector &	nodval
	)

function approximates function defined by nodal values

Parameters:

	areacoord	- vector containing area coordinates
	nodval	- nodal values

Definition at line 69 of file creepb-f.cpp.

References f, and scprd().

void b3_law	(	double &	jt,
		double	t0,
		double	t
	)

void b3_law	(	double &	jt,
		double	t0,
		double	t
	)

function computes J(t,t') by Prof. Bazant

Parameters:

jt

- function of creep

10.10.2002

function computes J(t,t') by Prof. Bazant (Jt = strain)

Parameters:

jt

- function of creep

10.10.2002

Definition at line 601 of file creepb-f.cpp.

References a1, alfa, c_s, fc, gc, h_s, h_slast, k_d, k_s, sc, t_w, tb, temp_s, temp_slast, type_h, type_temp, and wc.

Referenced by matstiff(), matstiffchange(), and updatevalkons().

void creepinit	(	long	ipp,
		double	val,
		nonmechquant	nmq
	)

void creepinit	(	long	ipp,
		double	val,
		nonmechquant	nmq
	)

Definition at line 43 of file creepb-f.cpp.

References intpoints::eqother, mechmat::ip, Mm, nc, intpoints::ncompstr, nRetTime, rel_hum, and temperature.

void get_desht	(	double &	des_hn,
		double	t0,
		double	t
	)

void get_desht	(	double &	des_hn,
		double	t0,
		double	t
	)

function computes eps by Prof. Bazant

Parameters:

des_hn

- function computing of shrink and temperature strain

10.9.2004

Definition at line 532 of file creepb-f.cpp.

References a1, alfa, c_s, fc, h_s, h_slast, k_d, k_s, t_w, tb, temp_s, temp_slast, type_h, type_temp, and wc.

Referenced by phase1(), and phase2().

void get_h ( long ipp )

Definition at line 328 of file creepb-f.cpp.

References intpoints::eqother, h_slast, mechmat::ip, Mm, nc, nRetTime, and type_h.

Referenced by matstiff(), matstiffchange(), and nlstresses().

void get_temp ( long ipp )

Definition at line 335 of file creepb-f.cpp.

References intpoints::eqother, mechmat::ip, Mm, nc, nRetTime, temp_slast, and type_temp.

Referenced by matstiff(), matstiffchange(), and nlstresses().

void giveirrstrains	(	long	ipp,
		long	ido,
		vector &	epscr
	)

Function returns irreversible plastic strains.

Parameters:

	ipp	- integration point number in the mechmat ip array.
	ido	- index of the first internal variable for given material in the ipp other array
	epscr	- vector of irreversible strains

Returns vector of irreversible strains via parameter epscr

Definition at line 836 of file creepb.cpp.

References intpoints::eqother, mechmat::ip, Mm, vector::n, and intpoints::ncompstr.

Referenced by mechmat::giveirrstrains().

void inv_sym ( matrix & a )