Abstract

The process-structure-property (PSP) relationship of continuous carbon fiber reinforced thermoplastics manufactured through fused filament fabrication was investigated for the first time, specifically on mode I Interlaminar Fracture toughness (ILFT). A standard double cantilever beam test is used to evaluate the mode I ILFT. The PSP relationship is established using micro-computed tomography scan and laser optical microscope. This study demonstrates that higher nozzle, bed temperatures, and lower print speed enhances the mode I ILFT. The mode I ILFT is found to be greatly affected by porosity and bond formation between the layers, which are dependent on the process parameters.

摘要

首次研究了通过熔丝制造制造的连续碳纤维增强热塑性塑料的工艺-结构-性能 (PSP) 关系，特别是模式 I 层间断裂韧性 (ILFT)。标准双悬臂梁测试用于评估模式 I ILFT。使用微型计算机断层扫描和激光光学显微镜建立 PSP 关系。这项研究表明，较高的喷嘴、床温和较低的打印速度会增强模式 I ILFT。发现模式 I ILFT 受到层间孔隙率和键形成的极大影响，这取决于工艺参数。