PSI - Issue 13

Tatyana Tretyakova et al. / Procedia Structural Integrity 13 (2018) 1739–1744 Author name / Structural Integrity Procedia 00 (2018) 000–000

1741

3

AE Sensor 1

AE Sensor 2

1 – Instron 8850 system 2 – Vic-3D system 3 – IR-camera SC7700M 4 – AE system AMSY-6

a b Fig. 1. Experimental set-up for with multi-parameter identification of experimental data by a combined use of the testing and registration equipment (a); location of AE sensors on specimen surface (b). The surface of specimen from the side of the Vic-3D system was covered by the matt black/white speckle pattern; the opposite surface (from the side of the IR-camera) was spayed by matt black paint to reduce reflections. The testing equipment and measurement systems were synchronized by the DAQ device NI USB-6251 (National Instruments). 3. Results and discussions 3.1. Additional vibration impact Figure 2 illustrates the loading diagrams in the axes ‘load-displacement’ obtained for Al-Mg alloy specimen. Curves 1 (green line) and 2 (black line) in Fig. 2 correspond to the uniaxial tension test and the uniaxial tension test with additional vibration accordingly. Unloads on diagrams (see Fig. 3) were caused by the limitation of the number of points in writing the loading program in the WaveMatrix software package.

Fig. 2. Loading diagrams obtained for Al-Mg alloy specimen without (green) and with additional vibration (black).

Fig. 3. Zoomed loading diagrams obtained for Al-Mg alloy specimen without (green) and with additional vibration (black).