Li Longze, Merickel John W, Tang Yalei, Song Rongjie, Rittenhouse Joshua E, Vakanski Aleksandar, Xu Fei
Department of Computer Science, University of Idaho, Moscow, ID, USA.
Idaho National Laboratory, Idaho Falls, ID, USA.
Sci Data. 2025 Jan 11;12(1):48. doi: 10.1038/s41597-024-04329-2.
Mechanical testing with sub-sized specimens plays an important role in the nuclear industry, facilitating tests in confined experimental spaces with lower irradiation levels and accelerating the qualification of new materials. The reduced size of specimens results in different material behavior at the microscale, mesoscale, and macroscale, in comparison to standard-sized specimens, which is referred to as the "specimen size effect." Although analytical models have been proposed to correlate the properties of sub-sized specimens to standard-sized specimens, these models lack broad applicability across different materials and testing conditions. The objective of this study is to create the first large public dataset of tensile properties for sub-sized specimens used in nuclear structural materials. We performed an extensive literature review of relevant publications and extracted over 1,000 tensile testing records comprising 55 columns including material type and composition, manufacturing information, irradiation conditions, specimen dimensions, and tensile properties. The dataset can serve as a valuable resource to investigate the specimen size effect and develop computational methods to correlate the tensile properties of sub-sized specimens.
使用小尺寸试样进行力学测试在核工业中发挥着重要作用，有助于在辐射水平较低的有限实验空间内进行测试，并加速新材料的鉴定。与标准尺寸试样相比，试样尺寸的减小导致材料在微观、细观和宏观尺度上表现出不同的行为，这被称为“试样尺寸效应”。尽管已经提出了分析模型来关联小尺寸试样与标准尺寸试样的性能，但这些模型在不同材料和测试条件下缺乏广泛的适用性。本研究的目的是创建第一个用于核结构材料的小尺寸试样拉伸性能的大型公共数据集。我们对相关出版物进行了广泛的文献综述，并提取了1000多条拉伸测试记录，包括55列信息，如材料类型和成分、制造信息、辐照条件、试样尺寸和拉伸性能。该数据集可作为研究试样尺寸效应和开发关联小尺寸试样拉伸性能的计算方法的宝贵资源。
