The fatigue behavior of woven angle ply glass fiber reinforced plastic laminates under tension–tension fatigue loading has been investigated. Rectangular specimens were subjected to fatigue loading of constant amplitude at three stress levels 80%, 70% and 60% of ultimate tensile strength for stress ratios 0.1 and 0.3. The fatigue life in woven angle ply GFRP composites was improved at all stress levels once the stress ratio was raised from 0.1 to 0.3. Moreover, it was determined that the fatigue life, fatigue stiffness, cyclic creep strain and dissipated energy were dependent on stress level and stress ratio.

中文翻译：

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应力比对编织角铺层 GFRP 层合板拉拉疲劳行为的影响

已经研究了在拉伸-拉伸疲劳载荷下编织角板玻璃纤维增​​强塑料层合板的疲劳行为。矩形试样在应力比为 0.1 和 0.3 的极限抗拉强度的 80%、70% 和 60% 这三个应力水平下承受等幅疲劳载荷。一旦应力比从 0.1 提高到 0.3，编织角铺层 GFRP 复合材料的疲劳寿命在所有应力水平下均得到改善。此外，已确定疲劳寿命、疲劳刚度、循环蠕变应变和耗散能量取决于应力水平和应力比。