Biomimetics Analysis Based on The Microstructure of Red Abalone

Abstract

Nickel-based superalloys are used as blade materials for aircraft jet engines. Recently, ceramic composites are developed to improve heat resistance and reduce weight. However, further cost reduction is desired. In this study, we focused on the nacreous layer of red abalone and investigated the stress-strain curve and fracture characteristics. It was found that the slip deformation and zig-zag-like crack propagation path between the thin-plate layers that constitute the nacreous layer exhibit nonlinear deformation behavior and high ductility. It was modeled by brick and finite element analysis was carried out. The analysis results faithfully simulate the actual deformation and fracture behavior. In the future, the geometry and material constants of the model will be optimized to propose advanced material.