PSI - Issue 28

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J. Weiland et al. / Procedia Structural Integrity 28 (2020) 1249–1257 Weiland et al. / Structural Integrity Procedia 00 (2019) 000–000

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Fig. 5: Manufacturing steps and dimensions of the single lap joint

Fig. 6: Test setup – Specimen with integrated POF

4. Experiments and measuring equipment For the experiments, a red light-emitting diode (LED) was used to couple light of 650 nm wavelength into the POF. At 650 nm wavelength, PMMA has a low absorption coefficient. Typical values of the attenuation are 0.16 dB/km,