Nanoindentation on Monolayer Kirigami MoS2
ORAL
Abstract
Kirigami is an ancient technique that alters the structure and flexibility of materials. This presentation will focus on molecular dynamics (MD) simulations of mechanical properties of atomically thin kirigami MoS2 membranes. Two kirigami structures — rectangular and hexagonal patterns — are studied in indentation simulations. Our simulations reveal dramatic changes in the ductility of monolayer kirigami MoS2 compared with regular MoS2 monolayer. We observe the inelastic response of kirigami MoS2 membranes under indentation. We also identify the role of defects in the inelasticity of kirigami MoS2. Results for other mechanical properties of kirigami MoS2 will also be presented.
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Presenters
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Beibei Wang
University of Southern California
Authors
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Beibei Wang
University of Southern California
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Rajiv Kalia
University of Southern California, Physics, University of Southern California, Physics & Astronomy, University of Southern California
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Aiichiro Nakano
University of Southern California, Physics, University of Southern California, Physics & Astronomy, University of Southern California
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Priya Vashishta
University of Southern California, Physics, University of Southern California, Collaboratory for Advanced Computing and Simulations, University of Southern California, Physics & Astronomy, University of Southern California