Nanomechanics of Carbon Tubes: Instabilities beyond Linear Response
Boris I. YakobsonDepartment of Physics, North Carolina State University, Raleigh, North Carolina 27695C. J. BrabecDepartment of Physics, North Carolina State University, Raleigh, North Carolina 27695J. BernholcDepartment of Physics, North Carolina State University, Raleigh, North Carolina 27695
1996en
ABI
Abstract
Carbon nanotubes subject to large deformations reversibly switch into different morphological patterns. Each shape change corresponds to an abrupt release of energy and a singularity in the stress-strain curve. These transformations, simulated using a realistic many-body potential, are explained by a continuum shell model. With properly chosen parameters, the model provides a remarkably accurate ``roadmap'' of nanotube behavior beyond Hooke's law.
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