PSI - Issue 11

P. Bamonte et al. / Procedia Structural Integrity 11 (2018) 322–330

326

5

P.

Bamonte and A.

Taliercio/ Structu

ral Integrity Pro

cedia 00 (2018)

000–000

of th chim phen

e chimney, w ney was use omena by the

as used und d for linear a eXtended Fi

er axisymme nalyses, wher nite Element

tric loads, n eas the reduc Method (XFE

amely change ed model wa M) – see e.g.

s in tempera s used for de Fries and Be

ture. The glo tailed analys lytschko (201

bal model o es of the crac 0).

f the king

(a)

(b) built in ABAQU

Fig. 4. Geomet (b) reduced mo ercial softw ucture, it is les of the fin radial coordi sts of tetrahe eas a finer m stic analyses anisotropic and mortar w d a Poisson s were assum

ry of the models del. are ABAQUS expedient to ite element a nate,  the ci dra: quadratic esh of linear are listed in T behavior of m ere assumed ’s ratio equal ed to be of sta

S: (a) global mo

del;

Fig. 3

. Crack pattern i

n the chimney be

fore 2015 (Anza

ni et al., 2012).

T the t syste coor the a in th the n T the com mod Mor

he two mode wo models. m. All the m dinate system xial coordina e linear elast onlinear anal he mechanica flat-jack test puted using s ulus of 1000 tar joints wer

ls were devel Because of t aterial prope . From here te (increasing ic analyses of ysis of the red l properties o were not suf ome homoge 0 MPa and 1 e assumed to

oped by mean he axisymme rties and the onwards, r w upwards). Th the entire ch uced model. f masonry us ficient to cha nization proc 000 MPa, re be 10 mm-thi

s of the comm try of the str output variab ill denote the e mesh consi imney, wher ed in the ela racterize the edure. Bricks spectively, an ck, and brick

. Fig. 4 show adopt a cylin nalyses will b rcumferential elements (DC elements (DC able 2. As th asonry, thes to be isotrop to 0.15 and ndard size (2

s the geomet drical coord e referred to coordinate, a 3D10) were 3D4) was us e values give e properties ic, with an e 0.2, respecti 50  120  55 m

ry of inate this nd z used ed in n by were lastic vely. m 3 ).