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

Rong Long, Chung-Yuen Hui, Wenlong Cheng, Michael J Campolongo, Dan Luo

Research output: Contribution to journalArticleResearchpeer-review

4 Citations (Scopus)

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 Younga??s modulus and square of the pre-strain of the membrane.
Original languageEnglish
Pages (from-to)1 - 4
Number of pages3
JournalNanoscale Research Letters
Issue number7
DOIs
Publication statusPublished - 2010

Cite this

Long, Rong ; Hui, Chung-Yuen ; Cheng, Wenlong ; Campolongo, Michael J ; Luo, Dan. / Size Effect on Failure of Pre-stretched Free-Standing Nanomembranes. In: Nanoscale Research Letters. 2010 ; No. 7. pp. 1 - 4.
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Size Effect on Failure of Pre-stretched Free-Standing Nanomembranes. / Long, Rong; Hui, Chung-Yuen; Cheng, Wenlong; Campolongo, Michael J; Luo, Dan.

In: Nanoscale Research Letters, No. 7, 2010, p. 1 - 4.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - Size Effect on Failure of Pre-stretched Free-Standing Nanomembranes

AU - Long, Rong

AU - Hui, Chung-Yuen

AU - Cheng, Wenlong

AU - Campolongo, Michael J

AU - Luo, Dan

PY - 2010

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AB - 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 Younga??s modulus and square of the pre-strain of the membrane.

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DO - 10.1007/s11671-010-9625-y

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JO - Nanoscale Research Letters

JF - Nanoscale Research Letters

SN - 1931-7573

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