工艺与制造英文2021被引 20
热塑性和热固性复合材料风力叶片抗冲击性能的实验与数值对比研究
Experimental and Numerical Comparison of Impact Behavior between Thermoplastic and Thermoset Composite for Wind Turbine Blades
Thiago Henrique Lara Pinto, Waseem Gul, Libardo Andrés González Torres, Carlos Alberto Cimini, Sung Kyu Ha · Universidade Federal dos Vales do Jequitinhonha e Mucuri
摘要整理
本研究针对风力叶片的设计和结构完整性，评估了复合材料板在低速冲击下的损伤特性。采用VARTM（真空辅助树脂传递模塑）工艺，分别使用热塑性和热固性树脂体系，结合碳纤维、玻璃纤维及碳玻混杂纤维的非织造布（NCF）结构制备试样，并在不同冲击能量水平下测试和对比其冲击性能。所用树脂体系为Arkema公司的ELIUM 188O（热塑性）和Hexion公司的EPR-L20标准环氧树脂（热固性）。通过有限元数值模型进行辅助分析，以深入理解试验物理过程，并将模型预测结果与实验数据进行对比验证。研究结果表明，ELIUM热塑性树脂能够有效替代传统热固性基体，热塑性复合材料板的性能与热固性对标样品相当，甚至表现出更低的冲击损伤倾向。在热塑性和热固性树脂体系中，玻璃纤维层板的损伤水平最低，碳纤维层板的损伤水平最高。混杂层板可作为折中方案应用于工程实践。
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