PSI - Issue 18

D.A. Bondarchuk et al. / Procedia Structural Integrity 18 (2019) 353–367 D.A. Bondarchuk, B.N.Fedulov, A.N. Fedorenko/ Structural Integrity Procedia 00 (2019) 000 – 000

366 14

Table 1. Matching of stress components in local and global coordinate systems.

#

Parameter

Dimension

Symbol

Value

Fiber AS4 1

Young’s modulus

[GPa]

E 1f

228 17.2

E 2f =E 3f

2

Poisson’s ratio

[-]

nu 12f =nu 13f

0.2 0.5

nu 23f

3

Shear modulus

[GPa]

G 12f =G 13f

27.6 5.73

G 23f

[ 0 C -1 ]

4

Coefficient of thermal expansion

CTE

-0.9E-7 7.2E-6

1f

CTE 2f =CTE 3f

[g/cm 3 ] [J/kg 0 C]

5 6

Density

rho Cp

1.74 1500

f

Specific heat

Resin 8552 7

r

Young’s modulus in resin state Young’s modulus in glass state Poisson’s ratio in resin state Coefficient of thermal expansion in resin state Coefficient of thermal expansion in glass state

[GPa] [GPa]

E m E m

0.00467

gl

8 9

4.67

[-]

nu m

0.3

[ 0 C -1 ]

r

10

CTE

7E-5

m

[ 0 C -1 ]

gl

11

CTE

16.5E-5

m

12 13 14

Volume shrinkage

[%]

V sh rho Cp

6

[g/cm 3 ] [J/kg 0 C]

Density

1.3

f

Specific heat

1027

Composite AS4/8552 15

[J/kg 0 C] [W/m 0 C]

Specific heat

Cp

1176

16

Thermal conductivity

k11

5.5

k22=k33

0.75

17

Fiber volume fraction

[%]

V f

57.42

References

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