A theoretical study on defect and notch sensitivity in orthotropic materials is carried out, with the aim to make explicit the bridging between notch effect and defect sensitivity. Analogies and differences with the isotropic case are highlighted, and the relevant parameters necessary to quantify the transition from a fracture-mechanics-controlled to a notch-mechanics-controlled behaviour are discussed in details. The validity of the proposed approach is proven taking advantage of a bulk of experimental data taken from the literature and related to thermoplastic and thermosetting composite laminates with different stacking sequences and notch geometries.

中文翻译：

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正交异性材料和复合材料的静态缺口敏感性

对正交异性材料的缺陷和缺口敏感性进行了理论研究，旨在明确缺口效应与缺陷敏感性之间的桥梁。强调了与各向同性情况的类比和差异，并详细讨论了量化从断裂力学控制到刻痕力学控制行为过渡所必需的相关参数。利用从文献中获得的大量实验数据证明了所提出方法的有效性，这些实验数据与具有不同堆叠顺序和槽口几何形状的热塑性和热固性复合层压板有关。