Accession Number:

ADA564737

Title:

Mesoscale Simulations of Particle Reinforced Epoxy-Based Composites

Descriptive Note:

Interim rept. Jul 2009-Jul 2011

Corporate Author:

AIR FORCE RESEARCH LAB EGLIN AFB FL MUNITIONS DIRECTORATE

Personal Author(s):

• White, Bradley W.
• Springer, H. K.
• Jordan, Jennifer L.
• Spowart, Jonathan E.
• Thadhani, Naresh N.

Report Date:

2012-07-25

Pagination or Media Count:

11.0

Abstract:

Polymer matrix composites reinforced with metal powders have complex microstructures that vary greatly from differences in particle size, morphology, loading fractions, etc. The effects of the underlying microstructure on the mechanical and wave propagation behavior of these composites during dynamic loading conditions are not well understood. To better understand these effects, epoxy Epon826DEA reinforced with different particle sizes of Al and loading fractions of Al and Ni were prepared by casting. Microstructures from the composites were then used in 2D plane strain mesoscale simulations. The effect of varying velocity loading conditions on the wave velocity was then examined to determine the Us-Up and particle deformation response as a function of composite configuration.

Descriptors:

• *COMPOSITE MATERIALS
• *MATRIX MATERIALS
• *POWDER METALS
• DEFORMATION
• DYNAMIC LOADS
• EPOXY COMPOUNDS
• MICROSTRUCTURE
• MORPHOLOGY
• PARTICLE SIZE
• POLYVINYL CHLORIDE
• REINFORCING MATERIALS
• STRAIN RATE
• WAVE PROPAGATION

Subject Categories:

• Laminates and Composite Materials
• Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE