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首页> 外文会议>ASME international mechanical engineering congress and exposition >CHARACTERIZATION OF RESIN-INJECTION REPAIR OF IMPACT DAMAGE IN POLYMER MATRIX COMPOSITE
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CHARACTERIZATION OF RESIN-INJECTION REPAIR OF IMPACT DAMAGE IN POLYMER MATRIX COMPOSITE

机译：聚合物基复合材料冲击损伤修复的树脂表征

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Resin injection repair of impact damage in polymer matrix composites is studied using an in-house developed repair methodology. Carbon fiber reinforced polymeric composite specimens were impacted for three levels of impact damage (23 J, 35 J and 51 J - typical of low energy, medium energy, high energy) using a drop tup test rig and the damage zone was characterized using ultrasonic C-scan technique. The impact damaged specimens were repaired using a resin infiltration method. The selection of low viscosity room temperature curing resin, and process parameters such as resin injection pressure and vacuum levels to be maintained were studied to arrive at optimum repair method. The tension, compression strength of laminates prior to impact and post-impact as well as post-repair was studied to assess the quality of repair method. The results indicate that the chosen resin injection repair is effective for the repair of low energy impact damage but not in the case of medium and high energy impact damage.
机译：使用内部开发的修复方法研究了聚合物基复合材料中冲击损伤的树脂注射修复。碳纤维增强的聚合物复合材料试样使用落锤试验机冲击了三个水平的冲击损伤（23 J，35 J和51 J-典型的低能量，中能量，高能量），并且使用超声波C表征了损伤区域-扫描技术。使用树脂渗透法修复冲击破坏的样品。研究了低粘度室温固化树脂的选择，以及要保持的工艺参数（例如树脂注入压力和真空度），从而获得了最佳的修复方法。研究了层压板在冲击和冲击后以及修复后的拉伸强度，抗压强度，以评估修复方法的质量。结果表明，所选择的树脂注射修复剂对于低能量冲击损伤的修复是有效的，但在中和高能量冲击损伤的情况下则无效。

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