Issue 35

M. Bozkurt et alii, Frattura ed Integrità Strutturale, 35 (2016) 350-359; DOI: 10.3221/IGF-ESIS.35.40 356 It can be observed from Tab. 1 that repeated fracture tests yield consistent and repeatable fracture load values. In Fig. 12., a load displacement curve is shown for  =45 o and resulting fracture surface are shown. As can be seen from this figure, due to different signs of mode-II SIF on two sides of the specimen crack deflection angles are opposite to each other, i.e., upward in one side and downward in the other side. Figure 11 : Mode-I/III fracture test experiemntal set-up. (a) (b) Figure 12 : Mode-I/III (a) load-displacement curve and (b) fracture surface - θ=45° and t =25 mm .