Single grain crushing tests on two sand types used for wheel-rail sanding

This data set contains the data of single grain crushing tests. Tested were two types of sand, which are used to increase friction in wheel-rail contacts.<br> Please see the following paper for a detailed description of experiments:<br> " Suhr, B.; Skipper, W.A.; Lewis, R.; Six, K. Sanded Wheel–Rail Contacts: Experiments on Sand Crushing Behaviour. <em>Lubricants</em> <strong>2023</strong>, <em>11</em>, 38. https://doi.org/10.3390/lubricants11020038 " Two types of experiments were conducted, both of them were single grain crushing tests. First, initial breakage tests were conducted. Second, single grain crushing tests were conducted under realistic wheel-rail load including subsequent grain/fragment crushing.<br> The material tested was two types of sand used in railways, called AT sand (used in Austria) and GB sand (used in the UK).<br> Both types of sand are tested under dry and wet contact conditions.<br> Please see the referenced paper for details on the conducted experiments.

本数据集包含单颗粒破碎试验（single grain crushing tests）数据。本次试验针对两种用于提升轮轨接触界面摩擦力的砂材开展。详细的试验说明请参阅下述论文：Suhr, B.; Skipper, W.A.; Lewis, R.; Six, K. 《砂化轮轨接触：砂粒破碎特性试验研究》(Sanded Wheel–Rail Contacts: Experiments on Sand Crushing Behaviour)，*Lubricants*，2023年，第11卷，第38页，DOI: 10.3390/lubricants11020038。本次共开展两类试验，全部为单颗粒破碎试验：其一为初始破碎试验；其二为模拟真实轮轨载荷条件下的单颗粒破碎试验，试验过程包含后续颗粒/碎片破碎环节。本次试验所用砂材为铁路领域使用的两种砂，分别为奥地利使用的AT砂与英国使用的GB砂。两种砂材均在干、湿接触工况下完成测试。试验具体细节请参阅上述参考文献。