# Fileset

[202409 T Inoue et al.＿JMRT-Vol.33(2024)2210-2215 Supplementary.pdf](https://mdr.nims.go.jp/filesets/884a00a0-b4af-4d4f-84a5-b0f5a588ae0b/download)

## Creator

[Tadanobu Inoue](https://orcid.org/0000-0002-7366-7688), [Qiu Hai](https://orcid.org/0000-0003-2098-3406), [Koji Nakazato](https://orcid.org/0000-0002-2344-0733)

## Rights

[Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International](https://creativecommons.org/licenses/by-nc-nd/4.0/)

## Other metadata

[Reliability of the Young's modulus of crab exoskeleton materials estimated from nanoindentation tests](https://mdr.nims.go.jp/datasets/08af437f-8283-4011-804c-42beed3375c8)

## Fulltext

Microsoft Word - JMRT Supplementary material_T Inoue  1  Supplementary material  Reliability of the Young’s modulus of crab exoskeleton materials estimated from nanoindentation tests  Tadanobu Inoue a,*, Qiu Hai a, Koji Nakazato a a National Institute for Materials Science, 1-2-1, Sengen, Tsukuba 305-0047, Japan  *Corresponding Author at: National Institute for Materials Science, 1-2-1, Sengen, Tsukuba 305-0047, Japan. e-mail: INOUE.Tadanobu@nims.go.jp     Figure S1. Procedure of the specimen preparation.          2    Figure S2. Variations of microstructure ground with grit 320/600/800/1200 grade silicon carbide papers on the exoskeleton and results of surface roughness; Ra : arithmetical mean roughness and Rz : maximum height. Abrasive particle sizes of grinding papers are approximately 35 μm for grit 320, 15 μm for grit 600, 13 μm for grit 800, and 8 μm for grit 1200. Microstructures and roughness were observed and measured through a 3D laser scanning microscope (VK-X200/210, Keyence Corporation, Osaka, Japan).     3   Figure S3. Nanoindentation load–displacement curves for first 15 locations on the cross-sectional plane. Here, S denotes unloading stiffness.    Figure S4. Nominal stress – nominal strain curve of the BT9 dry specimen. The Young's modulus, E, was evaluated from the slope of the linear part of the stress–strain curve.