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- Title
Size Effect on Failure of Pre-stretched Free-Standing Nanomembranes.
- Authors
Long, Rong; Hui, Chung-Yuen; Cheng, Wenlong; Campolongo, Michael; Luo, Dan
- 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.
- Subjects
BIOLOGICAL membranes; ENERGY harvesting; MEDICINE; SUBSTRATES (Materials science); FRACTURE mechanics
- Publication
Nanoscale Research Letters, 2010, Vol 5, Issue 7, p1236
- ISSN
1931-7573
- Publication type
Article
- DOI
10.1007/s11671-010-9625-y