PSI - Issue 11

Cyrille Denis Tetougueni et al. / Procedia Structural Integrity 11 (2018) 452–459 Tetougueni et al./ Structural Integrity Procedia 00 (2018) 000 – 000

456

5

2,00

A B

1,60

1,20

α 0

0,80

0,40

0,00

1

2

3

4

n°

Fig. 4. Collapse multiplier of the arch studied

Further analysis show that in the particular case where f/l=0.2, the collapse multiplier increase with the H L /H ratio as well as it will decrease by increasing the H/B ratio as shown on Fig.6.

Fig. 5. Arch structure with discontinuous arch thickness

In the case of ach with discontinuous thickness, the study has been focused considering different parameters as presented from Table 2 to Table 4. The aim was to studied how does the collapse multiplier of arch with uniform thickness change with respect to the collapse multiplier of the arch with discontinuous thickness. A dimensionless coefficient has been defined to study the two situations.

α (s )

γ =

( 3 )

α s ,