SEM images: cut resistance of climbing ropes

The dataset consists of over 1500 raw images from scanning electron microscopy of broken nylon 6 fibers. Fibers were taken from climbing ropes after undergoing laboratory cut resistance tests and an accident simulation. The images are divided into folders by: 1) test type: Accident simulation, Edelrid test, Elmenzwick test, and UIAA 101 Sharp Edge test 2) the type of rope and the location in its cross-section from which the images were taken. The fiber fractography revealed four main failure modes. These failure modes included lateral pressure with high-stress concentration, lateral pressure with low-stress concentration, high-speed tensile break, and molten and fused fiber ends. In isolated cases, ductile breaks were found. None of the laboratory test methods could comprehensively mimic the overall breaking mechanism of the accident simulation.本数据集包含超过1500幅断裂尼龙6（nylon 6）纤维的扫描电子显微镜（scanning electron microscopy, SEM）原始图像。所用纤维取自经实验室抗切割测试与事故模拟测试后的攀岩绳索。 该数据集的图像按照两类标准划分至不同文件夹存储： 1. 测试类型：包括事故模拟测试、Edelrid测试、Elmenzwick测试以及UIAA 101锐边测试（UIAA 101 Sharp Edge test）； 2. 绳索类型，以及拍摄图像时所选取的绳索横截面位置。 通过纤维断口形貌分析，共识别出四种主要失效模式：高应力集中侧向受压、低应力集中侧向受压、高速拉伸断裂，以及熔融粘连的纤维端头。在少数孤立案例中，观测到韧性断裂现象。现有实验室测试方法均无法全面复现事故模拟场景中的整体断裂机制。