报告题目：Enhanced mechanical properties of re-entrant auxetic honeycomb with self-similar inclusion
报 告 人： 吴柏生
所在单位：广东工业大学 机电工程学院
报告时间：2024年1月30日 9：30-10：30
报告地点：bwin必赢登录入口官网正新楼副楼105
校内联系人：李正光 lizg@jlu.edu.cn
报告摘要：In this report, we introduce a new auxetic honeycomb configuration by adding self-similar inclusion to the conventional re-entrant hexagonal structure. Theoretical models of the elastic mechanical property are developed for both auxetic honeycombs. The new re-entrant honeycomb exhibits enhanced auxeticity and stiffness compared to the original structure. Both experimental and numerical simulation methods are employed to investigate the in-plane compressive behavior of the auxetic structures, and they show good agreement. The specific energy absorption of the new auxetic structure is approximately 10 times greater than that of the original structure. In addition, the new design enhances the stability of compressive deformation, resulting in a more consistent negative Poisson’s ratio effect. Reducing the height-tolength ratio of the entire structure can significantly prevent its buckling. The proposed auxetic honeycomb exhibits significant potential for application in protection engineering, due to its superior stiffness and energy absorption capacity.
报告人简介：
吴柏生，广东工业大学教授。主要从事结构静动力重分析与优化、非线性振动、结构稳定性等方面的研究。目前，已发表SCI收录论文120余篇，被SCI期刊他引2000余次。负责完成国家自然科学基金课题5项。获得包括德国洪堡学者、教育部新世纪优秀人才支持计划、政府特殊津贴等学术奖励。
