Iso-stress architecture from mineral foliation patterns.

ABSTRACT: The mechanical behavior of polycrystalline materials is significantly influenced by their evolving microstructural features. While numerous experimental techniques have sought to optimize material performance, understanding the role of microstructural morphology in dictating mechanical responses has remained challenging. Here, we demonstrate that mimicking microstructural features found in metamorphic rocks, specifically the sigmoid foliation patterns characteristic of syntectonic porphyroblasts, enables control over the mechanical response of polycrystalline aggregates under deformation. This is achieved via controlled abnormal grain growth (AGG), which induces localized stress relaxation within abnormal grains while enhancing strain-hardening in the surrounding matrix. Driven by grain bo

SUBMITTER: Ospina-Correa JD 

PROVIDER: S-EPMC12018956 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature