Slip system level strengthening in nano-indentation of single crystalline copper: Numerical study via a non-local CPFEM model

Qin, Y., Zhu, Shuai, Brousseau, Emmanuel ORCID: https://orcid.org/0000-0003-2728-3189, Zhou, X., Yang, S., Zhao, J., Chen, B. and Al-Ahmad, M. 2024. Slip system level strengthening in nano-indentation of single crystalline copper: Numerical study via a non-local CPFEM model. MATEC Web of Conferences 401 10.1051/matecconf/202440103005

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Abstract

A three-dimensional non-local crystal plasticity finite element model (CPFEM) integrating the evolution of geometrically necessary dislocations (GNDs) and statistically stored dislocations (SSDs) was developed to simulate the nano-indentation of single crystal copper. The simulation accurately reproduced published experimental results when considering force-depth curves, indentation size effect (ISE), anisotropic plastic deformation and sink-in phenomenon. The accumulated slip, i.e., shear strain in individual slip systems, was quantitively investigated. It is anticipated that the developed non-local CPFEM model can support future sub-micro and nanoscale manufacturing research as it enables the rapid exploration of slip system level mechanical response of a diverse range of crystalline alloys.

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Engineering
Publisher:	EDP Sciences
ISSN:	2261-236X
Date of First Compliant Deposit:	24 October 2024
Last Modified:	24 Oct 2024 10:57
URI:	https://orca.cardiff.ac.uk/id/eprint/172577

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