Horta Muñoz Sergio, Serna Moreno María Del Carmen
Escuela de Ingeniería Industrial y Aeroespacial de Toledo, Instituto de Investigación Aplicada a la Industria Aeronáutica, Universidad de Castilla-La Mancha, Av. Carlos III, Real Fábrica de Armas, 45004 Toledo, Spain.
Polymers (Basel). 2022 Feb 11;14(4):686. doi: 10.3390/polym14040686.
The heterogeneity and anisotropy of fibre-reinforced polymer matrix composites results in a highly complex mechanical response and failure under multiaxial loading states. Among the different biaxial testing techniques, tests with cruciform specimens have been a preferred option, although nowadays, they continue to raise a lack of consensus. It is therefore necessary to review the state of the art of this testing methodology applied to fibre-reinforced polymers. In this context, aspects such as the specific constituents, the geometric design of the specimen or the application of different tensile/compressive load ratios must be analysed in detail before being able to establish a suitable testing procedure. In addition, the most significant results obtained in terms of the analytical, numerical and experimental analyses of the biaxial tests with cruciform specimens are collected. Finally, significant modifications proposed in literature are detailed, which can lead to variants or adaptations of the tests with cruciform specimens, increasing their scope.
纤维增强聚合物基复合材料的非均质性和各向异性导致其在多轴加载状态下具有高度复杂的力学响应和失效模式。在不同的双轴测试技术中，十字形试样测试一直是首选方案，尽管如今，对于该方案仍缺乏统一的共识。因此，有必要回顾一下应用于纤维增强聚合物的这种测试方法的现状。在此背景下，在能够建立合适的测试程序之前，必须详细分析诸如具体成分、试样的几何设计或不同拉伸/压缩载荷比的应用等方面。此外，还收集了在对十字形试样进行双轴测试的分析、数值和实验分析方面取得的最重要成果。最后，详细介绍了文献中提出的重大修改建议，这些建议可能会导致十字形试样测试的变体或改进，从而扩大其应用范围。
