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The elastic-plastic response of aluminum films to ultrafast laser-generated shocks
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View: Figures


Image of FIG. 1.
FIG. 1.

EBSD scan results in the form of a crystal direction map and related pole figures from representative aluminum film used in these experiments. Scan collected at 20 nm step size.

Image of FIG. 2.
FIG. 2.

(a) Measured free surface displacement of thick Al film. (b) Free surface velocity of aluminum film showing the noise and the results of filtering the data.

Image of FIG. 3.
FIG. 3.

Temporal profile of shock drive pulse.

Image of FIG. 4.
FIG. 4.

Free surface velocity profiles of six different laser-generated shocks on thick aluminum using 2.0 mJ incident drive energy.

Image of FIG. 5.
FIG. 5.

Changes in the elastic and plastic waves in Al films as a function of incident drive energy. The blue line highlights the decay of the elastic wave with decreasing incident drive energy. The red line highlights the change in slope of the plastic wave as a function of drive energy.

Image of FIG. 6.
FIG. 6.

Elastic wave decay as a function of thickness in aluminum. The same incident laser drive energy was used for all data.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The elastic-plastic response of aluminum films to ultrafast laser-generated shocks