PSI - Issue 35

Jarmil Vlach et al. / Procedia Structural Integrity 35 (2022) 132–140 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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Table 3. Elastic properties of laminate. Longitudinal modulus (11) Transverse modulus (22)

Transverse modulus (33)

Poisson ’s ratio (12)

Poisson ’s ratio (13)

Poisson ’s ratio (23)

Shear modulus (12)

Shear modulus (13)

Shear modulus (23)

(GPa) 129.84

(GPa) 13.34

(GPa) 13.34

(1)

(1)

(1)

(GPa)

(GPa)

(GPa)

0.26

0.26

0.44

4.89

4.89

4.63

Table 4. Strength of laminate. Longitudinal Tensile Strength

Longitudinal Compressive Strength

Transverse Tensile Strength

Transverse Compressive Strength

Longitudinal Shear Strength

Transverse Shear Strength

(MPa)

(MPa)

(MPa) 100.88

(MPa) 109.42

(MPa) 100.76

(MPa) 194.53

2965.41

2911.81

Table 5. Damage evolution parameters of laminate. Longitudinal Tensile Fracture Energy Longitudinal Compressive Fracture Energy

Transverse Tensile Fracture Energy

Transverse Compressive Fracture Energy

(mJ/mm 2 )

(mJ/mm 2 )

(mJ/mm 2 )

(mJ/mm 2 )

0.0737

0.0719

0.0139

0.0139

Table 6. Damage initiation parameters of cohesive contact. Layers crossing angle Normal Only

Shear-1 Only

Shear-2 Only

( °)

(MPa) 100.88 174.03

(MPa) 100.76 173.44

(MPa) 100.76 173.44

> 45° < 45°

Table 7. Damage evolution parameters of cohesive contact. Normal Fracture Energy

1 st Shear Fracture Energy

2 nd Shear Fracture Energy

(mJ/mm 2 )

(mJ/mm 2 )

(mJ/mm 2 )

0.0737

0.0139

0.0139

4.4. Match of calibration results

The results of the model's agreement with the tensile test are shown in Table 8. Best match was found for composite with 53.3 % of fibres which strength is 5 663 MPa.

Table 8. Calibration results.

Tensile modulus 76 965.0 76 964.9 (MPa)

Poisson ’s ratio

Ultimate tensile load

Deflection under impactor

Orientation

( °)

(1)

(N)

(mm)

Experiment Simulation

0 0

0.3025

49 820.0 50 854.7

7.53 7.21

0.3