Macro-meso failure mechanism and meso-scale evolution law of aeolian sand under engineering low-velocity impact - Xuekai Han; Yingchun Qi; Yuqiong Li; Jianzhong Zhu; Heshu Huang; Shiyi Zhu; Jiangquan Li; Mingming Dong; Meng Zou; Lianbin He (Soil Dynamics and Earthquake Engineering, 2026)