Summary: A figure of merit that enables comparisons between cellular material designs should ideally isolate effects of geometry from composition, especially in the context of the greater design freedom enabled by Additive Manufacturing. In this post I discuss three different metrics that may be used for this purpose and discuss the pros and cons of each.
Summary: The orientation of cells in wild honeycomb appears to be independent of gravity. This article proposes the structural basis for this.
Summary: Second of a two-part post on developing a taxonomy of cellular materials. This post focuses on 3D cellular materials. A previous post addressed 2D (prismatic) cellular materials.
Summary: A synthesis of different taxonomies of cellular materials. Part 1 of this post discusses 2D prismatic structures.
Summary: Discusses 4 strategies to lightweighting (material selection, structural optimization, architected materials and multifunctionality) and their convergence enabled by Additive Manufacturing
Freedom and Responsibility – Unit cells – Cell Size Distribution – Parameters – Integration
Key Takeaway: The number of cells in a test specimen composed of cellular structures greatly influences its mechanical response, and the nature of this relationship depends on the unit cell design and the imposed loading condition