Abstract This study carried out finite element dynamic analyses of carbon nanotubes/fiber/polymer composites (CNTFPC) with various geometries. In the first application, the effects of CNTs on the nonlinear transient responses of doubly curved shells for various cutout sizes and curvatures are studied. The numerical results obtained are in good agreement with those reported by other investigators. For the practical application, the focus of this study is to evaluate various performances of concrete structures reinforced with a rebar-type CNTFPC. The new results reported in this article show the interactions between CNT weight ratios and crack sizes in CNTFPC-reinforced concrete structures. Key observation points are discussed and a brief design guideline is given.

中文翻译：

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不同几何形状的碳纳米管增强复合材料的非线性动力学和裂纹行为

摘要 本研究对不同几何形状的碳纳米管/纤维/聚合物复合材料（CNTFPC）进行了有限元动力学分析。在第一个应用中，研究了碳纳米管对不同切口尺寸和曲率的双曲面壳的非线性瞬态响应的影响。获得的数值结果与其他研究者报告的结果非常一致。对于实际应用，本研究的重点是评估钢筋型 CNTFPC 加固的混凝土结构的各种性能。本文报道的新结果显示了CNTFPC 钢筋混凝土结构中CNT 重量比和裂缝尺寸之间的相互作用。讨论了关键观察点并给出了简要的设计指南。