As an emerging class of mechanical metamaterials with superior mechanical properties, shell-lattices possess smooth, periodic, and non-intersecting structures and are preferred for their open-cell topology from the perspective of manufacturability and mass and heat transfer-related applications. To obtain elastically-isotropic open-cell uniform thickness shell-lattices, a strain energy-based numerical homogenization and shape optimization procedure is proposed, based on a B-spline parameterized Monge patch model for representing the shell mid-surface within the fundamental domain. The whole analysis and optimization procedure is applied to the shell-lattices of P (Primitive) and IWP (I-graph-wrapped package) families, with the initial designs taken as the constant mean curvature (CMC) surfaces with different mean curvatures, showing that both families of lattices can...
12月5日上午,应土木工程系魏鹏老师邀请,日本京都大学建筑学系张景耀副教授在华南理工大学五山校区7号楼7220会议室,作了题为“张拉整体结构的力学特性研究”的学术报告。土木工程系李静老师、黄仕平老师和陈太聪老师,以及我院相关研究方向的研究生参加了学术报告。 在学术报告会上,张老师结合自己多年的研究经历,分别从张拉整体结构的概念和由来,分析和计算方法,算例和结果,以及拓展应用等方面展开,介绍了对张拉整体结构研究的成果。会后,张老师与参会的老师、同学们交流讨论,氛围轻松愉快。张老师分享的内容前沿、新颖,幻灯片中展示的结构变化丰富,超脱了传统的结构形式,但其分析的基本方程不过来自节点平衡,大道至简。报告开阔了同学们的眼界,增长了见识,获益匪浅。 张景耀博士是日本京都大学工学研究科建筑学系副教授。2001年毕业于浙江大学,2005年和2007年分别在京都大学获得工程硕士学位和博士学位。曾在京都大学 (2007~2009,博士后研究员) 、立命馆大学 (2009~2011,讲师) 、名古屋市立大学(2011~2019) 任职,...