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FP5

OPTIMAT BLADES Résumé de rapport

Project ID: ENK6-CT-2001-00552
Financé au titre de: FP5-EESD
Pays: Netherlands

Recommendations on testing and characterisation of materials

Recommended testing methods

Static tension:
The following coupon geometries were experienced to work well in static tensile testing for the OPTIMAT glass epoxy materials:

- Static tension 0° (UD). ISO 527-5, type A, with the exception that 25 mm (not 15 mm) wide and 2 mm thick (not 1 mm) specimens are suggested, OPTIMAT geometry I01. Alternatively OPTIMAT geometry R03 can be used.

- Static tension 90°(UD). ISO 527-5, type B, with the exception that 2-6 mm thick (not only 2 mm) specimens are suggested, OPTIMAT geometry I01. Alternatively OPTIMAT geometry R03 can be used.

- Static tension 0° (MD isotropic or orthotropic). ISO 527-4, type 3, 25 mm wide, OPTIMAT geometry I01. Alternatively OPTIMAT geometry R03 can be used.

- Static tension 90° (MD isotropic or orthotropic). ISO 527-5, type B, 25 mm wide, OPTIMAT geometry I01. Alternatively OPTIMAT geometry R03 can be used.

- Although not tested, ASTM D 3039 provides equivalent performance.

Static compression:
The following coupon geometries were experienced to work well in static compression testing for the OPTIMAT glass epoxy materials:
- Static compression 0° and 90° (1 and 2 directions, both UD and MD). ISO 14126, type B1, with the exception that the gauge length can be 10-35 mm and the width can be 10 to 25 mm.

- Although not tested, ASTM D 695 provides equivalent performance.

Static shear:
The following coupon geometries were experienced to work well in static shear testing for the OPTIMAT glass epoxy materials:
- V-notch beam (Iosipescu) (UD and MD). ASTM D 5379, OPTIMAT I04-00

- Static shear 30° tension (UD). ISO 527-5, fibres at 30° relative to longitudinal axis of test specimen

- Static shear ±45° tension (0°/90° special lay-up). ISO 14129, fibres at ±45° relative to longitudinal axis of test specimen.

Fatigue
The following coupon geometries were experienced to work well in fatigue testing for the OPTIMAT glass epoxy materials:
- Tension fatigue (R=0.1):. OPTIMAT I01, OPTIMAT R03-00, OPTIMAT R04-00

- Compression fatigue (R=10): (UD and MD). OPTIMAT R03-00, OPTIMAT R04-00

- Tension-compression Fatigue (R=-1):° (UD and MD). OPTIMAT R03-00, OPTIMAT R04-00

The Frequency of fatigue testing should be chosen to limit the temperature rise of the test specimen to a maximum of 10 degrees centigrade above the ambient temperature. In case of the OPTIMAT material, frequencies were chosen to be linear with the inverse of the square of the strain in the specimen, in order to keep dissipated energy constant.

Contact

Arno VAN WINGERDE, (Project manager ,technical coordinator OPTIMAT blades)
Tél.: +31-02-27504949
Fax: +31-02-27504948
E-mail