PSI - Issue 11

J.I. Gisbert et al. / Procedia Structural Integrity 11 (2018) 428–435

432

5

Author nam

e / Structural Inte

grity Procedia 0

0 (2018) 000–00 0

A Druc T this para

NSYS [10] d ker-Prager yi his composite paper, in ord meters:

efines this cr eld surface in criterion req er to calibra

iterion as a c compression uires defining te this techni

omposite sur . a hardening, que a linear

face consistin softening an brittle failure

g of a Ranki d dilatation (H method has

ne tension fai SD) behavio been used w

lure surface r for the mod ith the follo

and a el. In wing

Table 2: Materi Bricks Mortar

HSD parameters al

κ 0 0 κ cm .001 0.001 .001 0.002 cm

Ω ci Ω 5 0.33 0. 0.33 0.

cr κ tr 1 0.0005 1 0.0005

Ω tr 0.2 0.2

2.4.2 C betw defin reach T

. Contacts ontacts are al een mortar an ed [8] as a f ed, the conta he parameters

l defined as d bricks, wh racture surfac ct may fail ca to define the

symmetrical a ich can lead t e to allow th using openin CZM [7] are

nd bonded. H o slip and deb e brittle failu g or sliding. :

owever, in o onding behav re of the cont

rder to mode iors, a cohesi act. If the ten

l the tensile a ve zone mod sile or tange

nd shear resp el (CZM) has ntial stress lim

onse been it is

Table 3: Co Contact Masonry

hesive Zone Mo

del parameters F xt (MPa)

f I (N/m)

f II (N/m)

G

τ

ax (MPa)

G

m

-Joint

0.23

9

.7

0.

36

13

3. N

umerical mo

dels

Fi

gure 5: Uniaxial

(left) and diagon

al (right) model b

oundary conditio

ns

3.1. T Alth justi W incre T at th

Uniaxial com he model de ough it may fies it. hen solid65 asing steps n he boundary c e symmetry a

pression veloped to re use several t is used, a recu umber. The u onditions in xis, Z displac

present unia ime and reso rring method se of solid186 the model bas ement or X di

xial compres urces to fulfi to achieve co makes this u e are: (i) for a splacement (d

sion has been l the calculu nvergence is nnecessary, a ll nodes Y di epending of

built using s, the fact th to make seve s it usually re splacement h the axis) have

hexahedral 2 at it allows e ral tries reduc aches converg as been set to been set to z

0 node elem asier converg ing mesh siz ence at first t zero (ii) for n ero too.

ents. ence e and ry. odes