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Title: Experimental Testing and Numerical Modeling of Ballistic Impact on S-2 Glass/SC15 Composites

Abstract

Here, the work presented in this paper details both an experimental program and an associated numerical modeling effort to characterize and predict the ballistic response of S-2 glass/SC15 epoxy composite panels. The experimental program consisted of ¼ inch diameter soft carbon steel spheres impacting ¼ and ½ inch thick flat composite panels at velocities ranging from 220 to 1570 m/s. High speed cameras were used to capture the impact event and resulting residual velocity of the spheres for each test configuration. After testing, each panel was inspected both visually and with ultrasonic C-scan techniques to determine the extent and depth of damage imparted on the panel by the impactor. The numerical modeling efforts utilized the anisotropic multi-constituent composite model (MCM) within the CTH shock physics hydrocode. The MCM model allows for evaluation of damage at the constituent level through continuum averaged stress and strain fields. The model also accounts for the inherent coupling of the equation of state and strength response that occurs in anisotropic composite materials. Finally, the simulation results are compared against the experimentally measured residual velocity as a quantitative metric and against the measured damage extent and patterns as a qualitative metric. The comparisons show good agreementmore » in residual velocity and damage extent.« less

Authors:
 [1];  [2]
  1. Applied Physical Sciences Corp., Groton, CT (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1459984
Report Number(s):
SAND-2018-4456J
Journal ID: ISSN 2199-7446; 662564
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Dynamic Behavior of Materials
Additional Journal Information:
Journal Volume: 4; Journal Issue: 3; Journal ID: ISSN 2199-7446
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Ballistic impact; Ballistic damage; Penetration; S-2 glass/SC15 composite; Hydrocode

Citation Formats

Key, Christopher T., and Alexander, Charles Scott. Experimental Testing and Numerical Modeling of Ballistic Impact on S-2 Glass/SC15 Composites. United States: N. p., 2018. Web. doi:10.1007/s40870-018-0159-1.
Key, Christopher T., & Alexander, Charles Scott. Experimental Testing and Numerical Modeling of Ballistic Impact on S-2 Glass/SC15 Composites. United States. doi:10.1007/s40870-018-0159-1.
Key, Christopher T., and Alexander, Charles Scott. Wed . "Experimental Testing and Numerical Modeling of Ballistic Impact on S-2 Glass/SC15 Composites". United States. doi:10.1007/s40870-018-0159-1. https://www.osti.gov/servlets/purl/1459984.
@article{osti_1459984,
title = {Experimental Testing and Numerical Modeling of Ballistic Impact on S-2 Glass/SC15 Composites},
author = {Key, Christopher T. and Alexander, Charles Scott},
abstractNote = {Here, the work presented in this paper details both an experimental program and an associated numerical modeling effort to characterize and predict the ballistic response of S-2 glass/SC15 epoxy composite panels. The experimental program consisted of ¼ inch diameter soft carbon steel spheres impacting ¼ and ½ inch thick flat composite panels at velocities ranging from 220 to 1570 m/s. High speed cameras were used to capture the impact event and resulting residual velocity of the spheres for each test configuration. After testing, each panel was inspected both visually and with ultrasonic C-scan techniques to determine the extent and depth of damage imparted on the panel by the impactor. The numerical modeling efforts utilized the anisotropic multi-constituent composite model (MCM) within the CTH shock physics hydrocode. The MCM model allows for evaluation of damage at the constituent level through continuum averaged stress and strain fields. The model also accounts for the inherent coupling of the equation of state and strength response that occurs in anisotropic composite materials. Finally, the simulation results are compared against the experimentally measured residual velocity as a quantitative metric and against the measured damage extent and patterns as a qualitative metric. The comparisons show good agreement in residual velocity and damage extent.},
doi = {10.1007/s40870-018-0159-1},
journal = {Journal of Dynamic Behavior of Materials},
number = 3,
volume = 4,
place = {United States},
year = {2018},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
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Figures / Tables:

Figure 1 Figure 1: Equation of state data measured in the longitudinal and transverse orientations.

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    Works referencing / citing this record:

    Toward automated identification and quantification of meso-scale damage modes in plain weave glass/epoxy composite laminates
    journal, November 2019

    • Bonyi, Enock; Kioko, Bridgit; Meyer, Christopher S.
    • International Journal of Damage Mechanics
    • DOI: 10.1177/1056789519887215

    Toward automated identification and quantification of meso-scale damage modes in plain weave glass/epoxy composite laminates
    journal, November 2019

    • Bonyi, Enock; Kioko, Bridgit; Meyer, Christopher S.
    • International Journal of Damage Mechanics
    • DOI: 10.1177/1056789519887215