In many applications, glass fabrics are subject to cyclic forces. Here we show that a glass fabric can tear under a much lower cyclic force than monotonic force. For samples of a given width, a threshold force exists below which the fabric does not tear under cyclic load, and a critical force exists at which the fabric tears under monotonic load. For example, for 80 mm wide sample, the threshold force is 12.78 N, and the critical force is 344.73 N. Under cyclic force of amplitude between the threshold force and critical force, tear initiates after some number of cycles. Under either cyclic or monotonic force, the fabric tears in three modes: pullout of transverse yarns, pullout of transverse yarns and break of longitudinal yarns, and break of transverse and longitudinal yarns. We summarize the observed tear modes on the plane of two axes: the amplitude of force and the width of sample. It is hoped that this study will aid the development of fatigue-resistant fabrics and fabric reinforced composites.

在许多应用中，玻璃织物会受到循环力的影响。在这里，我们表明玻璃织物可以在比单调力低得多的循环力下撕裂。对于给定宽度的样品，存在阈值力，低于该阈值时织物在循环载荷下不会撕裂，并且存在临界力时织物在单调载荷下撕裂。例如，对于 80 mm 宽的样品，阈值力为 12.78 N，临界力为 344.73 N。在阈值力和临界力之间的振幅循环力下，在一定数量的循环后开始撕裂。在循环力或单调力作用下，织物以三种模式撕裂：横向纱线拉出，横向纱线拉出和纵向纱线断裂，以及横向和纵向纱线断裂。我们总结了在两个轴平面上观察到的撕裂模式：力的幅度和样品的宽度。希望这项研究将有助于开发抗疲劳织物和织物增强复合材料。