Evaluating fracture behavior of brittle polymeric materials using an IASCB specimen

► The advantages of IASCB specimen are considered experimentally for finding fracture toughness of polymeric materials. ► IASCB specimen can provide a wide range of T-stress (positive and negative values). ► It is shown that the T-stress has a significant effect on the value of fracture toughness in various fracture modes. ► Good correlation was observed between the GMTS prediction and experimental results.