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Dynamic response of phenolic resin and its carbon-nanotube composites to shock wave loading

Arman, B. and An, Q. and Luo, S. N. and Desai, T. G. and Tonks, D. L. and Çağin, T. and Goddard, W. A., III (2011) Dynamic response of phenolic resin and its carbon-nanotube composites to shock wave loading. Journal of Applied Physics, 109 (1). Art. No. 013503. ISSN 0021-8979.

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We investigate with nonreactive molecular dynamics simulations the dynamic response of phenolic resin and its carbon-nanotube (CNT) composites to shock wave compression. For phenolic resin, our simulations yield shock states in agreement with experiments on similar polymers except the “phase change” observed in experiments, indicating that such phase change is chemical in nature. The elastic–plastic transition is characterized by shear stress relaxation and atomic-level slip, and phenolic resin shows strong strain hardening. Shock loading of the CNT-resin composites is applied parallel or perpendicular to the CNT axis, and the composites demonstrate anisotropy in wave propagation, yield and CNT deformation. The CNTs induce stress concentrations in the composites and may increase the yield strength. Our simulations suggest that the bulk shock response of the composites depends on the volume fraction, length ratio, impact cross-section, and geometry of the CNT components; the short CNTs in current simulations have insignificant effect on the bulk response of resin polymer.

Item Type:Article
Related URLs:
URLURL TypeDescription DOIArticle PublisherArticle
An, Q.0000-0003-4838-6232
Çağin, T.0000-0002-3665-0932
Goddard, W. A., III0000-0003-0097-5716
Additional Information:© 2011 American Institute of Physics. Received 5 October 2010; accepted 8 November 2010; published online 4 January 2011. We have benefited from J. W. Lawson, C. Wei NASA Ames Research Center, J. Li UPenn, and C. Brandl LANL in various ways. This work was partly supported by the Advanced Simulation and Computation ASC Program at LANL. LANL is operated by Los Alamos National Security, LLC for the U.S. Department of Energy under Contract No. DE-AC52-06NA25396. T.G.D. was supported by the NASA Small Business Innovation Research SBIR Grant under Contract No. NNX10CC69P.
Funding AgencyGrant Number
Department of Energy (DOE)DE-AC52-06NA25396
Los Alamos National LaboratoryUNSPECIFIED
Subject Keywords:carbon nanotubes, composite materials, deformation, dynamic response, elasticity, molecular dynamics method, plasticity, polymers, resins, shock wave effects, stress relaxation, work hardening, yield strength
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Other Numbering System NameOther Numbering System ID
Issue or Number:1
Classification Code:PACS: 62.50.Ef; 62.40.+i; 81.40.Lm; 62.20.fq; 81.40.Jj; 62.20.D-
Record Number:CaltechAUTHORS:20110315-091122726
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Official Citation:Dynamic response of phenolic resin and its carbon-nanotube composites to shock wave loading B. Arman, Q. An, S. N. Luo, T. G. Desai, D. L. Tonks, T. Çağın, and W. A. Goddard, III J. Appl. Phys. 109, 013503 (2011); doi:10.1063/1.3524559 (7 pages)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:22884
Deposited By: Ruth Sustaita
Deposited On:15 Mar 2011 21:02
Last Modified:03 Oct 2019 02:41

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