Next Article in Journal
Novel Method for Estimating Phosphor Conversion Efficiency of Light-Emitting Diodes
Previous Article in Journal
Optical Detection of Protrusive Defects on a Thin-Film Transistor
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle
Crystals 2018, 8(12), 441;

R-curve Evaluation of Copper and Nickel Single Crystals Using Atomistic Simulations

College of Mechanics and Materials, Hohai University, Nanjing 211100, China
Department of Mechanical Engineering, Inha University, Incheon 402-751, Korea
Author to whom correspondence should be addressed.
Received: 19 October 2018 / Revised: 21 November 2018 / Accepted: 22 November 2018 / Published: 26 November 2018
PDF [4256 KB, uploaded 26 November 2018]


The technique of molecular statics (MS) simulation was employed to determine the crack growth resistance curve of Cu and Ni single crystals. Copper and Ni single crystal nanoplates with an edge crack subjected to a tensile displacement were simulated. Stress-displacement curves and snapshots of the atomic configuration corresponding to different displacement levels were presented to elucidate the deformation mechanism. It was observed that the edge crack propagated step by step in a brittle manner, and the amount of crack growth at each step was half the lattice parameter. Through an energy consideration, the critical strain energy release rate at the onset of crack propagation and the crack growth resistance were calculated. The crack growth resistance is larger than the critical strain energy release rate because of the crack growth effect. View Full-Text
Keywords: atomistic simulation; copper; nickel; R-curve atomistic simulation; copper; nickel; R-curve

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Zhuo, X.R.; Kim, J.H.; Beom, H.G. R-curve Evaluation of Copper and Nickel Single Crystals Using Atomistic Simulations. Crystals 2018, 8, 441.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Crystals EISSN 2073-4352 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top