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

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.3524559· OSTI ID:1076468
 [1];  [2];  [3];  [4];  [3];  [5];  [6]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Texas A&M Univ., College Station, TX (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); California Institute of Technology, Pasadena, CA (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Advanced Cooling Technologies, Inc., Lancaster, PA (United States)
  5. Texas A & M Univ., College Station, TX (United States)
  6. California Institute of Technology, Pasadena, CA (United States)

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 indicate 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.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1076468
Journal Information:
Journal of Applied Physics, Vol. 109, Issue 1; ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 29 works
Citation information provided by
Web of Science

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Cited By (1)

Shock response of He bubbles in single crystal Cu journal December 2014