Issue 53

P. Fathi, Frattura ed Integrità Strutturale, 53 (2020) 457-473; DOI: 10.3221/IGF-ESIS.53.36

The resin used in this study is the epoxy resin E.P.L and Hardner H.P.L and the glass fibers used are 0° and 90° glass fibers as well as [-45° and 45°] known as 205 Belarussian. Testing of specimens is performed according to ASTM D1822 and ISO 8256 with impact tensile test. The glass fiber fabric is first selected according to the appropriate test properties and standards and then according to the dimensions and orientation of the layer with predetermined patterns at angles 0° and 90° as well as [-45° and 45°]. The fiber line is cut. Dacron fabric and mesh fabric are cut to 10 cm larger on each side, depending on the size of the original fabric. The laminate composite plate is made of approximately 12 × 30 cm. Fig. 1 Fabric used in composite plates and Fig. 2 Cut mesh fabric and Dacron is shown.

Start the glass fiber layer

Dacron fabric layer

Layering fibers Figure 3: Steps of layering fibers.

Figure 4: Image after injection.

At this stage the fabric layering begins. First, a layer of Dacron fabric is placed on the glass surface, due to the fact that the piece is not adhered to the glass and creates a smooth, non-polished surface of the specimen, which then does not need to be sandwiched to the pieces for placement in the test apparatus. The next layer is the mesh fabric. The mesh fabric is applied

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