China Association for Science and Technology (CAST) announced the list of 99 papers included in the 2nd CAST Excellent STM Paper Selection Plan. The selected papers are representatives of excellent papers published in academic journals of China since 2013. We have two papers included in the list: Title: Novel implementation of homogenization method to predict effective properties of periodic materialsAuthors: Geng-Dong Cheng; Yuan-Wu Cai; Liang XuActa Mechanica Sinica, 29:550-556 (2013) Title: Research progress on the mechanics of high speed railsAuthors: Guowei Yang, Yujie Wei, Guilin Zhao, et al.Advances in Mechanics, 45: 201507 (2015)