Issue 47

M. Fallah Tafti et alii, Frattura ed Integrità Strutturale, 47 (2019) 169-185; DOI: 10.3221/IGF-ESIS.47.14 177 The maximum load for each sample was obtained from its corresponding load-displacement diagram (e.g. see from Fig. 4 to Fig.9). The fracture toughness for each specimen was then calculated using Eqn. (1). The assumed values for the parameters used in this equation are a=20mm, R=75mm, t=30mm, S=50mm, and Y I =3.73. The shape factor value was obtained from previous research by Ameri et al. [3]. Figure 4 : A load-displacement curve obtained for the Control SCB test sample. Figure 5 : A load-displacement curve obtained for the SCB test sample modified with Sasobit 3. Figure 6 : A load-displacement curve obtained for the SCB test sample modified with Sulfur 50. Figure 7 : A load-displacement curve obtained for the SCB test sample modified with PACSF 0.1. Figure 8 : A load-displacement curve obtained for the SCB test sample modified with EPS 15. Figure 9 : A load-displacement curve obtained for the SCB test sample modified with Parafiber 0.2.