Abstract Numerical and experimental studies have been conducted to try to quantify the influence of Automated Fiber Placement (AFP) induced manufacturing defects on the quasi-static behavior of composite parts ranging, on the building block approach, from coupons to sub-structural parts. In more recent studies, researchers started to conduct the same investigations for fatigue load cases with the purpose of determining the influence of defects on damage initiation and propagation mechanisms. This document will present a review of both experimental and numerical studies conducted so far on the influence of AFP defects on laminate response and failure characteristics during fatigue loading. In the first section, a brief introduction of the types of AFP manufacturing defects identified will be presented before focusing on publications related to the influence of the aforementioned defects on the quasi-static behavior of composite laminates. Following, in the second section, we propose to detail the numerical investigations on the fatigue behavior of composite laminates. Then, the third section will present a combined experimental and numerical investigation of the influence of the manufacturing defects presented in the first section on the fatigue behavior studied in detail in the second section. Finally, the fourth section is dedicated to a comparison of the time cost associated with numerical and experimental approach.

中文翻译：

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具有自动纤维铺放缺陷的复合层压板的疲劳行为——综述

摘要 已经进行了数值和实验研究，以试图量化自动纤维铺放 (AFP) 引起的制造缺陷对复合材料部件准静态行为的影响，从试样到子结构部件的构建块方法。在最近的研究中，研究人员开始对疲劳载荷情况进行相同的研究，目的是确定缺陷对损伤开始和传播机制的影响。本文件将对迄今为止进行的关于疲劳加载期间 AFP 缺陷对层压板响应和失效特性影响的实验和数值研究进行回顾。在第一节中，在重点介绍与上述缺陷对复合层压板准静态行为的影响相关的出版物之前，将简要介绍所识别的 AFP 制造缺陷类型。接下来，在第二部分，我们建议详细介绍复合材料层压板疲劳行为的数值研究。然后，第三部分将结合实验和数值研究第一部分中提出的制造缺陷对第二部分中详细研究的疲劳行为的影响。最后，第四部分致力于比较与数值方法和实验方法相关的时间成本。我们建议对复合材料层压板的疲劳行为进行详细的数值研究。然后，第三部分将结合实验和数值研究第一部分中提出的制造缺陷对第二部分中详细研究的疲劳行为的影响。最后，第四部分致力于比较与数值方法和实验方法相关的时间成本。我们建议对复合材料层压板的疲劳行为进行详细的数值研究。然后，第三部分将结合实验和数值研究第一部分中提出的制造缺陷对第二部分中详细研究的疲劳行为的影响。最后，第四部分致力于比较与数值方法和实验方法相关的时间成本。