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

Journal Article · · Journal of Dynamic Behavior of Materials
 [1];  [2]
  1. Applied Physical Sciences Corp., Groton, CT (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
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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.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1459984
Report Number(s):
SAND--2018-4456J; 662564
Journal Information:
Journal of Dynamic Behavior of Materials, Journal Name: Journal of Dynamic Behavior of Materials Journal Issue: 3 Vol. 4; ISSN 2199-7446
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

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  • Key, Christopher T.; Alexander, C. Scott; Harstad, Eric N.
  • SHOCK COMPRESSION OF CONDENSED MATTER - 2017: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, AIP Conference Proceedings https://doi.org/10.1063/1.5044925
conference January 2018
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Cited By (1)

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

Figures / Tables (18)

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Related Subjects

36 MATERIALS SCIENCE
Ballistic damage
Ballistic impact
Hydrocode
Penetration
S-2 glass/SC15 composite