PSI - Issue 26

Merdaci Slimane et al. / Procedia Structural Integrity 26 (2020) 35–45 Slimane et al. / Structural Integrity Procedia 00 (2020) 000 – 000

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9

2,4 2,6 2,8 3,0 3,2 3,4 3,6 3,8 4,0 4,2 4,4 4,6 4,8 5,0 5,2 5,4 5,6 5,8 6,0 6,2

Distribution of Even Porosity Perfect and Imperfect Plates

(  =0.0) (  =0.1) (  =0.2)

a/h=5

a/h=10

a/h=20

ω

0

1

2

3

4

5

6

7

8

9 10

"P"

Fig. 3. Influence of thickness ratio (a/h) on the dimensionless frequency parameter of the FG-plate for even porosity.

6,0

a/h=10

5,5

5,0

Perfect

4,5

Imperfect(Even)

ω

4,0

(  =0) (  =0.1) (  =0.2)

3,5

3,0

1,0

1,5

2,0

2,5

3,0

3,5

4,0

b/a

Fig. 4. Dimensionless frequency as a function of the ratio (b/a) for even porosity.

6,0

P=0

5,9

5,8

Perfect

5,7

5,6

ω

5,5

Imperfect

5,4

5,3

(  =0) (  =0.1) (  =0.2)

5,2

5,1

0

2

4

6

8 10 12 14 16 18 20

a/h

Fig. 5. Dimensionless frequency as a function of the thickness ratio (a/h) for the even porosity.