| Autor: |
White, Bradley W., Thadhani, Naresh N., Jordan, Jennifer L., Spowart, Jonathan E. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 12/28/2009, Vol. 1195 Issue 1, p1245-1248, 4p |
| Abstrakt: |
Multiphase composite materials consisting of one or more types of particle reinforcement in an epoxy matrix are being studied to determine the effect of reinforcement on the dynamic yield strength and critical impact velocity for plastic deformation. Casting was used to prepare epoxy-matrix composites with varying particle loading fractions (20–50 Vol%), size (5 and 50 μm), and type (Al or Ni+Al). The cast samples were tested at strain rates in the range of 103 to 104 s-1 using a 7.62 mm gas gun with a rod-on-anvil (Taylor) impact experiment setup. The recovered impacted specimens were analyzed to determine the dimensions of their deformed and undeformed regions. The yield strength and critical velocity for plastic deformation were evaluated using Hutching’s analysis and correlated with quantitative characteristics of the size and distribution of the reinforcement phases [1, 2]. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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