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 language | English |
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Pages (from-to) | 1 - 4 |
Number of pages | 3 |
Journal | Nanoscale Research Letters |
Issue number | 7 |
DOIs | |
Publication status | Published - 2010 |