期刊
JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
卷 81, 期 6, 页码 -出版社
ASME
DOI: 10.1115/1.4026484
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资金
- Itasca Consulting Group
- National Science Foundation [CMMI 0800896, CMMI 1000415]
- James L. Record Chair
- University of Minnesota Doctoral Dissertation Fellowship
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1000415] Funding Source: National Science Foundation
The recently developed distinct element method for mesoscale modeling of carbon nanotubes is extended to account for energy dissipation and then applied to characterize the constitutive behavior of crystalline carbon nanotube bundles subjected to simple tension and to simple shear loadings. It is shown that if these structures are sufficiently long and thick, then they become representative volume elements. The predicted initial stiffness and strength of the representative volumes are in agreement with reported experimental data. The simulations demonstrate that energy dissipation plays a central role in the mechanical response and deformation kinematics of carbon nanotube bundles.
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