A Classification of Aperiodic Architected Cellular Materials

摘要

Architected cellular materials encompass a wide range of design and performance pos-sibilities. While there has been significant interest in periodic cellular materials, recent emphasishas included consideration of aperiodicity, most commonly in studies of stochastic and gradedcellular materials. This study proposes a classification scheme for aperiodic cellular materials, byfirst dividing the design domain into three main types: gradation, perturbation, and hybridization.For each of these types, two design decisions are identified: (i) the feature that is to be modifiedand (ii) the method of its modification. Considerations such as combining different types of aperi-odic design methods, and modulating the degree of aperiodicity are also discussed, along with areview of the literature that places each aperiodic design within the classification developed here, aswell as summarizing the performance benefits attributed to aperiodic cellular materials over theirperiodic counterparts.