Dynamics of lattice structures

格子结构无处不在：从蜜蜂幼体中规则排列的六角形细胞到屋顶桁架和燃气轮机叶片。它们的特征都是在一维、二维或三维中以线性或循环的方式重复自身的单位。在过去的五年里，微结构金属桁架晶格材料的概念在材料力学领域引起了广泛的兴趣。这些努力的核心是在所有金属和复合材料结构中实现具有高比刚度和高强度的定制格子结构的目标。这种结构在航空航天和汽车工业中有应用。今天，由于激光微加工、微印刷和软光刻等现代制造技术的发展，工程师们能够在计算机中编写复杂的三维点阵图案，这些图案将被转化为制造的部件。由于微电子工业的发展，这是可能的。

Lattice structures are ubiquitous: from the regular arrangement of hexagonal cells in the brood of a honey bee to roof trusses and gas turbine blades. They are all characterized by a unit that repeats itself either linearly or cyclically in one, two, or three-dimensions. The notion of micro-architectured metallic truss lattice materials has received wide interest among the mechanics of materials community over the past five years. Central to these efforts is the goal to achieve tailored lattice architectures with high specific stiffness and strength in all metallic and composite structures. Such structures have applications in aerospace and automotive industries. Today, engineers are in a position to 'write' complex three dimensional lattice patterns in a computer which will be translated to a manufactured component, thanks to modern manufacturing techniques such as laser micromachining, micro printing, and soft lithography. This is possible due to the developments in microelectronics industry.