Usually, fatigue tests on fibre-reinforced composites are performed in uni-axial tension/tension or tension/compression fatigue [1], providing the S-N data. Although bending fatigue tests are not widely accepted as a standard, they are used a lot for research purposes [2] and they do have some important advantages [3]. In case of three-point bending fatigue, the history of bending force versus ...

Fatigue cracks have appeared as a significant issue for joints and connections in existing steel structures the last decades. Therefore, those are major inspection maintenance matter any structure's operator. This emphasises importance of using reliable detection method to determine crack size assessing severity such on structural integrity structure. In this article, effectiveness strain measu...