Mode-I fracture dataset of far-positioned PEI and PVDF interlayered epoxies

SPABOND™ 820HTA and SPABOND™ 840HTA wind turbine rotor blade adhesives are toughened with 0.5 mm thick PEI and PVDF thermoplastic interlayers and their plain strain fracture toughness is determined through single-edge-notch bending (SENB) experiments. The interlayers are positioned far (6.75 mm) from the initial notch to evaluate the unstable crack-arresting capability of the thermoplastic interlayers. The raw force-displacement datasets from pristine and thermoplastic interlayered SENB experiments are provided. The typical fracture behavior of interlayered specimens is recorded using a high-speed camera, and the corresponding videos are available here.

SPABOND™ 820HTA及SPABOND™ 840HTA风力涡轮机叶片胶粘剂通过0.5毫米厚的聚醚酰亚胺（PEI）和聚偏氟乙烯（PVDF）热塑性中间层进行增强，其平面应变断裂韧性通过单边缺口弯曲（SENB）试验测定。中间层距离初始缺口较远（6.75毫米），以评估热塑性中间层的裂纹阻止能力。提供了原始的力-位移数据集，包括未处理和热塑性中间层增强的SENB试验。使用高速摄像机记录了中间层样品的典型断裂行为，相应的视频资料可在此处查阅。