Micromechanics Analysis of the Tensile Behavior of Twaron Fiber Tows at Various Strain Rates
In this study, tensile experiments of Twaron fiber tows under different strain rates (quasi-static:0.001s-1, dynamic: 800s-1~2400s-1) were carried out with MTS 810.23 materials tester and split Hopkinson tension bar (SHTB) respectively. The results showed that the mechanical properties of the Twaron fiber tows were sensitive to strain rate: the stiffness and failure stress of the fiber tows increased distinctly as the strain rate increased, while the failure strain decreased. From scanning electronic microscope (SEM) photographs of the fracture surface, it is indicated that the Twaron fiber tows failed in a more tough mode and the axial split will become more severe as the strain rate increases.
Qi Luo and Yuanzhi Wang
L. T. Zhu and B. Z. Sun, "Micromechanics Analysis of the Tensile Behavior of Twaron Fiber Tows at Various Strain Rates", Advanced Materials Research, Vols. 181-182, pp. 749-753, 2011