宁夏大学学报（自然科学版中英文）2026，Vol.47Issue(1)：14-23,10.DOI:10.20176/j.cnki.nxdz.20251216
局部压入载荷下有限尺寸薄膜-基底系统的屈曲行为研究
On the Buckling Behavior of Finite-Size Film-Substrate Systems under Local Indentation
摘要
Abstract
The film-substrate system is widely used in various industrial applications,and a comprehensive understanding of its mechanical response under various loads is crucial for optimizing the design and application of flexible electronics and soft robotics.However,the buckling analysis of finite-size film-substrate systems under local indentation remains insufficiently explored,which significantly hinders the practical application and technological advancement of related devices.To address this gap,a combination of experimental testing,numerical simulations,and theoretical analyses was employed to systematically investigate the buckling mechan-ical behavior of finite-size film-substrate systems subjected to local indentation.The findings show that the insta-bility behavior of these systems under local indentation differs markedly from that predicted by finite-size mod-els.Specifically,when the indentation depth exceeds a critical threshold,the film-substrate system undergoes buckling.As the indentation depth increases further,the buckling patterns transition from an initial symmetric state to an asymmetric state.In addition,the buckling behavior can be effectively controlled by adjusting geo-metric parameters and material properties.The results provide essential theoretical insights and technical sup-port for the structural design of flexible electronic devices and soft robotics,as well as for understanding the buckling behavior in natural film-substrate systems.关键词
薄膜-基底系统/局部压入/有限尺寸/屈曲/有限元分析Key words
film-substrate system/local indentation/finite size/buckling/finite element method分类
数理科学引用本文复制引用
彭娟,吴羽飞,王耀东,陈培见..局部压入载荷下有限尺寸薄膜-基底系统的屈曲行为研究[J].宁夏大学学报（自然科学版中英文）,2026,47(1):14-23,10.基金项目
国家自然科学基金资助项目(12422202,12272401) （12422202,12272401）
