PSI - Issue 1

B. Soares et al. / Procedia Structural Integrity 1 (2016) 082–089 Bruno Soares/ Structural Integrity Procedia 00 (2016) 000 – 000

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2.2. Test Methodology

In order to determine the properties of the composite material produced, 5 test methods were used as to ascertain the behavior of the composite material when subjected to tensile and compressive loads, flexural loads and shear loads. The ASTM test methods used to determine the behavior are shown in Table 3 with the corresponding specimen dimensions. All the tests were performed in a Instron 3369 electromechanical testing machine, running the Instron BlueHill software.

Table 3 – Test Method specimen dimensions

Specimen Dimensions (mm)

Test Method

ASTM D 3039 Tensile properties ASTM D 3410 Compression ASTM D790 3 point bending ASTM D 3518 In Plane shear

250x25 140x25 140x25 250x25 150x75

ASTM D 4255 Rail shear

Fig. 1 – Instron 3369 testing machine

3. Results and discussion

3.1. Tensile Tests (ASTM D3039)

Table 4 shows the average, standard deviation and coefficient of variation of the maximum stress and modulus of elasticity of the ASTM D3039 tensile tests.