PSI - Issue 11

R. Capozucca et al. / Procedia Structural Integrity 11 (2018) 402–409

407

6

R. Capozucca

, E. Magagnini,

M.V. Vecchietti /

Structural Integ

rity Procedia 00

(2018) 000–000

a

b

F ig. 5. (a) Typica

l mesh for FE an

alysis of beam B

2; (b) view of firs

t three vibration

modes r=1,…,3

B2 by FE analy

sis.

for damage beam

Table 3. Experim alues damaged b with free-free en Exp. average val

ental frequency eam B2 with no ds FEM ues with free-fre

values of damage tches

d RC beam by n

otches.

Frequency v

f

f 3 [Hz]

f 2 [Hz]

1 [Hz]

Damaged B2 Damaged B2

116.90

325.9

5

620.20

e ends

120.70

334.0

0

627.00

Damaged B2

- D 0 * Exp. avera

ge values with fr

ee-free ends notc

hes filled with ep

oxy resin

121.00

333.1

0

631.25

E

xperimental . Static test w le 4. The typi

diagrams load as carried ou cal cracking s

, P, vs deflec t until failure tate at damag

tion at mid-sp . Main results e D* 4 with a

an section ar recorded du load value equ

e shown in F ring the static al to P=28kN

igure 7 for ev bending test is shown in

ery damage d are summariz Figure 8.

egree ed in

step Tab

Fig. 6

(a) Setup of beam

B2 under static

loading.

Load [k

N]

10 15 20 25 30

D1* D2* D3* D4*

0 5

0

5

10

15 20 t mid-span [mm

25

displacement a

]

Fig.7. Exp. diagr

am load, P, vs di

splacement at mi

d span of beam B 2.