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Experimental Testing and Numerical Modeling of Ballistic Impact on S-2 Glass/SC15 Composites
- Source :
- Journal of Dynamic Behavior of Materials. 4:373-386
- Publication Year :
- 2018
- Publisher :
- Springer Science and Business Media LLC, 2018.
-
Abstract
- 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.
- Subjects :
- Materials science
Materials Science (miscellaneous)
Stress–strain curve
Composite number
02 engineering and technology
021001 nanoscience & nanotechnology
Residual
020303 mechanical engineering & transports
0203 mechanical engineering
Mechanics of Materials
Solid mechanics
SPHERES
Ultrasonic sensor
Composite material
0210 nano-technology
Anisotropy
Ballistic impact
Subjects
Details
- ISSN :
- 21997454 and 21997446
- Volume :
- 4
- Database :
- OpenAIRE
- Journal :
- Journal of Dynamic Behavior of Materials
- Accession number :
- edsair.doi...........b79447cffab0c482a62c65f1b70b99c0
- Full Text :
- https://doi.org/10.1007/s40870-018-0159-1