Picture Frame Test According To DIN SPEC 4885 / DIN EN ISO 20337
The shear test using DIN SPEC 4885 / DIN EN ISO 20337 is a picture frame shear test. Laminates with thermosetting or thermoplastic matrices reinforced with fibres in 0°- or 0°/90°-direction can be tested. The square shaped specimen is built symmetrically and balanced around the midplane. Typically the thickness of the specimen is 2…4 mm.
It requires expensive test fixtures and significant amounts of test material, as opposed to the established tests. But it provides great advantages:
For the shear test using DIN SPEC 4885 / DIN EN ISO 20337 we developed the shear frame test fixture GZ S-100 / GZ S-100 HT. Hydraulic clampings provide quick and easy change of specimen. The testing routine takes only few minutes, so it can be integrated into industrial environments for shear tests series.