Tough and deformable glasses with bioinspired cross-ply architectures

Acta Biomaterialia
Zhen YinFrancois Barthelat

Abstract

Glasses are optically transparent, hard materials that have been in sustained demand and usage in architectural windows, optical devices, electronics and solar panels. Despite their outstanding optical qualities and durability, their brittleness and low resistance to impact still limits wider applications. Here we present new laminated glass designs that contain toughening cross-ply architectures inspired from fish scales and arthropod cuticles. This seemingly minor enrichment completely transforms the way laminated glass deforms and fractures, and it turns a traditionally brittle material into a stretchy and tough material with little impact on surface hardness and optical quality. Large ply rotation propagates over large volumes, and localization is delayed in tension, even if a strain softening interlayer is used, in a remarkable mechanism which is generated by the kinematics of the plies and geometrical hardening. Compared to traditional laminated glass which degrades significantly in performance when damaged, our cross-ply architecture glass is damage-tolerant and 50 times tougher in energy terms. Despite the outstanding optical qualities and durability of glass, its brittleness and low resistance to impact still limits it...Continue Reading

Citations

Jul 4, 2019·Advanced Materials·Wei HuangDavid Kisailus
Jun 30, 2019·Science·Z YinF Barthelat
Feb 25, 2020·Journal of the Mechanical Behavior of Biomedical Materials·Hanyang JiangXiaoyuan He
Jan 23, 2021·Bioinspiration & Biomimetics·Zhen Yin, Francois Barthelat

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