课题组秉持开放包容、学术自由的理念。在这里，导师与成员之间平等交流，鼓励创新思维与跨学科探索。课题组在理论、计算和实验方面都积累了较好的基础，且尊重每一位成员的学术兴趣与发展方向，支持在大方向确定的情况下自主选题与大胆尝试。课题组不仅注重学术成果，更珍视成员间的互帮互助与共同成长，是一个兼具学术深度与人情温度的大家庭。课题组与国内外青年学者保持了密切的交流合作，组成了跨学校的青年教师指导团队，竭尽全力为成员提供最好的帮助。课题组的研究方向简介如下：

(1) 薄膜的非线性力学 

[1] Liu Y, Ma H, Long H, Wei S, Zhang S, and Wei Y*. Multi-scale indentation model of stiff film-compliant substrate structures[J]. Applied Mathematical Modelling, 2023, 119: 566-585. 

[2] Liu Y, Zhang S, Long H, and Wei Y*. Trans-scale surface wrinkling model and scaling relationship analysis of stiff film-compliant substrate structures[J]. Science China Technological Sciences, 2022, 65(11): 2776-2786. 

[3] Liu Y, Ma H, Wei Y, et al. Size effect investigation of indentation response of stiff film/compliant substrate composite structure[J]. International Journal of Solids and Structures, 2020, 193: 106-116.

[4] Liu Y, Wei Y. Effect of surface energy on the indentation response of hard nanofilm/soft substrate composite structure[J]. International Journal of Mechanical Sciences, 2020, 185: 105759.

(相关研究进展持续更新中...)

(2) 多场耦合下先进材料及结构的跨尺度力学行为及应用 

[1] Liu Y*, Long H, Zhang S, et al. Coupling effect of strain gradient strengthening and thermal softening on the microscale plastic behavior of metallic materials[J]. European Journal of Mechanics-A/Solids, 2023, 102: 105117. 

[2] Liu Y et al. Strain gradient induced ductile-to-brittle fracture mode transition in micro-nano porous metallic materials. (In preparation) 

[3] Liu Y, Ma H, Long H, et al. Couple effect of surface energy and strain gradient on the mechanical behaviors of the biological staggered composites[J]. Composite Structures, 2021, 271: 114133.

[4] Zhang S*, Zhao B, Zhu S, and Liu Y*. Buckling behaviors prediction of biological staggered composites with finite element analysis and machine learning coupled method[J]. Composite Structures, 2024(345): 118357.

[5] Wu Z, Liu Y*, Shao L H**. Inverse design of bio-inspired staggered composites via machine learning and genetic algorithms for tailored mechanical properties[J]. MechanoEngineering, 2026, 1(1).

(相关研究进展持续更新中...)

(3) 复杂颗粒体系的力学行为 

[1] Fu X, Liu Y, Lu J, et al. Order-disorder transition during shear thickening in bidisperse dense suspensions[J]. Journal of Colloid and Interface Science, 2024, 662: 1044-1051.

[2] Fu X, Ge Li, Liu Y*. Microstructure and thickening of bi-disperse granular suspensions in simple shear flow[J]. Journal of Fluid mechanics, 2026, 1037: A63.

[3] Zhang S*, Zhao B, Liu Y*. Coupling effect of plastic deformation and surface roughness on friction behaviors of rough line contact for ground metal surfaces[J]. Tribology International, 2024, 193: 109338.

(相关研究进展持续更新中...)