Nano Archive

Size Effect on Failure of Pre-stretched Free-Standing Nanomembranes

Long, Rong and Hui, Chung-Yuen and Cheng, Wenlong and Campolongo, Michael J. and Luo, Dan (2010) Size Effect on Failure of Pre-stretched Free-Standing Nanomembranes. Nanoscale Research Letters, 5 (7). pp. 1236-1239.

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Official URL: http://www.springerlink.com/content/n0522m721k056g...

Abstract

Free-standing nanomembranes are two-dimensional materials with nanometer thickness but can have macroscopic lateral dimensions. We develop a fracture model to evaluate a pre-stretched free standing circular ultrathin nanomembrane and establish a relation between the energy release rate of a circumferential interface crack and the pre-strain in the membrane. Our results demonstrate that detachment cannot occur when the radius of the membrane is smaller than a critical size. This critical radius is inversely proportional to the Young’s modulus and square of the pre-strain of the membrane.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:9365
Deposited By:JNCASR
Deposited On:01 Oct 2010 09:50
Last Modified:01 Oct 2010 09:50

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