工艺与制造英文2025被引 1
3D打印连续纤维增强聚合物基复合材料的疲劳耐久性
Fatigue Endurance of Continuous Fiber-Reinforced Polymer Matrix Composites Manufactured by 3D Printing
Jorge Guillermo Díaz-Rodríguez, Alberto David Pertuz-Comas, Oscar Rodolfo Bohorquez-Becerra · Tecnologico de Monterrey, School of Engineering and Sciences, Av. General Ramon Corona 2514, Guadalajara 45138, Jalisco, Mexico
摘要整理
本文报道了采用材料挤出（MEX）技术制造的芳纶和碳纤维增强聚合物基复合材料在高周疲劳工况下的单轴疲劳试验结果。试样按ASTM D638 I型标准制造，在应力比R=0.1的条件下于室温进行测试，记录失效循环次数。基于前期不同配置的试验结果，对芳纶和碳纤维增强复合材料分别进行了加载应力为断裂应力40%~91%和25.5%~80.7%范围内的疲劳试验。结果表明，芳纶增强复合材料的最大疲劳寿命达到250万次循环，碳纤维增强复合材料达到406万次循环。观察到的失效模式包括纤维撕裂、基体开裂和纤维-基体界面脱粘。研究结果为3D打印连续纤维增强复合材料的工程应用提供了重要的疲劳性能数据支撑。
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