Effects of temperature on the energy absorbing characteristics of redwood for plutonium air transportable package

Abstract

Redwood is used as an impact energy-absorbing material in the plutonium air transportable (PAT) package. To function properly the redwood must retain its properties over a wide temperature range. Since data were not available, an experimental program was conducted on 3-inch cubes of redwood over the temperature range of -40 to 230/sup 0/F (-40 to 110/sup 0/C). The specific energy, average crushing stress, and percent compression at bottoming are presented for the 22 specimens tested. Average values show an approximately 10% decrease in the specific energy and average crushing stress for a temperature rise from 70 to 230/sup 0/F (21 to 110/sup 0/C); and an approximate 30% increase in these quantities for a decrease from 70 to -40/sup 0/F (21 to -40/sup 0/C). 10 figs.

Document type: Report

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The different versions of the original document can be found in:

• http://dx.doi.org/10.2172/6624856

• https://digital.library.unt.edu/ark:/67531/metadc1199849/m2/1/high_res_d/6624856.pdf

• https://www.osti.gov/servlets/purl/6624856,https://academic.microsoft.com/#/detail/1577623053