Notch sensitivity of textile reinforced flexible composites

To evaluate the effects of notch type and notch depth on the tensile properties for textile reinforced flexible composites and to better design and apply textile reinforced flexible composites,the uniaxial tensile tests on single edge notch(SENT),double edge notch(DENT) and centre notch(CENT) samples with various notch depths were conducted.The propagation of notch,destructing process of the notch,and the criterion of notch propagation threshold force were also discussed.For these three kinds of notch types,the notch sensitivity and notch toughness were also studied.The experimental results show that the textile reinforced flexible composite exhibits significantly notch sensitivity.Compared with CENT samples,the SENT samples exhibit higher notch sensitivity,and lowest for DENT samples.