Semantic Scholar Open Access 2020 22 sitasi

Investigation of failure mechanisms of nacre at macro and nano scales.

Jingyu Liu Yanan Xu Hong Yang Yinong Liu P. Yarlagadda +1 lainnya

Lihat Sumber DOI

Abstrak

Nacre is a natural composite featuring exceptional mechanical properties such as high strength and high toughness. Its unique structure is now universally applied in engineering bioinspired materials. On the other hand, it is still a technical challenge to investigate its interfacial strength and fracture mechanisms at micro or nano-scale. In this work, the interfacial strength and fracture mechanism of the 'brick-mortar' structure in nacre are investigated using micro-sized cantilever beam and bend samples. As compared to previous works, a high aragonite/biopolymer interfacial strength is observed (~298 MPa). The crack propagation path is investigated via experiment and finite element modelling and compared with the fracture mechanics analysis. It is confirmed that crack deflection to the aragonite/biopolymer interface contributes to a high overall toughness. This work provides a better understanding of the toughening mechanism in nacre and other bioinspired composites.

Topik & Kata Kunci

Materials Science Medicine

Penulis (6)

Jingyu Liu

Yanan Xu

Hong Yang

Yinong Liu

P. Yarlagadda

Cheng Yan

Format Sitasi

APA MLA BibTeX

Liu, J., Xu, Y., Yang, H., Liu, Y., Yarlagadda, P., Yan, C. (2020). Investigation of failure mechanisms of nacre at macro and nano scales.. https://doi.org/10.1016/j.jmbbm.2020.104018

Akses Cepat

Lihat di Sumber doi.org/10.1016/j.jmbbm.2020.104018

Informasi Jurnal

Tahun Terbit: 2020
Bahasa: en
Total Sitasi: 22×
Sumber Database: Semantic Scholar
DOI: 10.1016/j.jmbbm.2020.104018
Akses: Open Access ✓