Recently, the Innovative Composite Center of Kanazawa Institute of Technology developed a thermoplastic epoxy resin (TP-EP). Resin-impregnated carbon fiber reinforced TP-EP (CF/TP) strands molded by pultrusion were developed by Komatsu Matere Co., Ltd., for use as tension rods. This study examines the prediction of the statistical life time for these developed CF/TP strands under cyclic tension loading with comparison to our earlier report of similar predictions for carbon fiber reinforced thermoset epoxy resin (CF/TS) strands having a thermoset epoxy resin (TS-EP) as a matrix. First, test methods for static and fatigue strengths at elevated temperatures were developed for CF/TP strands. Second, static and fatigue tensile strengths of CF/TP strands were measured statistically at various constant temperatures under a constant strain rate and frequency. The master curves of statistical fatigue tensile strengths for CF/TP strands were constructed by substituting the measured data into the formulations of these strengths based on the matrix resin viscoelasticity. The fatigue strength characteristics of CF/TP strands were discussed through comparison to those of CF/TS strands with thermosetting epoxy resin as the matrix.

最近，金泽理工学院创新复合中心开发了一种热塑性环氧树脂（TP-EP）。小松Matere Co.，Ltd.开发了通过拉挤成型模制的树脂浸渍碳纤维增强TP-EP（CF / TP）股，用作拉力棒。这项研究检查了这些发达的CF / TP股在循环张力载荷下的统计寿命预测，并将其与我们之前对具有热固性环氧树脂（TS）的碳纤维增强热固性环氧树脂（CF / TS）股的类似预测进行了比较。 -EP）作为矩阵。首先，针对CF / TP绞线开发了高温下静态和疲劳强度的测试方法。第二，在各种恒定温度，恒定应变速率和频率下，统计测量CF / TP股的静态和疲劳拉伸强度。通过将测得的数据代入基于基体树脂粘弹性的这些强度的公式中，来构造CF / TP股的统计疲劳拉伸强度的主曲线。通过与以热固性环氧树脂为基质的CF / TS股的比较，讨论了CF / TP股的疲劳强度特性。