| Description |
iv, 14 pages : illustrations ; 28 cm. |
| Content |
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| Media |
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| Carrier |
volume nc |
| Series |
ASD technical report; 62-629.
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| Note |
"October 1962." |
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AD0291485. |
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Research supported by the United States Air Force and performed by the U.S. Department of Agriculture, Forest Products Laboratory, Madison, Wisconsin. |
| Summary |
Several reinforced plastic laminates that have shown promise of having good strength properties at elevated temperatures have been investigated to determine their strength within their useful range of temperature and duration of exposure. Results of tension, compression, and interlaminar shear evaluations are summaraized for six laminates after exposure to temperatures ranging from room temperature to 1,000 degrees F and soak periods ranging from about 2 minutes to 1,000 hours. The results show that the strenght usually decreases immediately with application of heat. Further application of heat at constant temperature, however, sometimes results in an increase of strength, but continued exposure at the higher temperatures ultimately results in a complete loss of strength. Exceptions and various degrees of degradation depend on the kind of material, the temperature, and the period of exposure. Hence, curves are presented for six materials, three mechanical tests, and a range of duration of exposure, so that each may be judged separately. |
| Subject(s) |
Laminated materials -- Testing.
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Laminated plastics -- Testing.
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| Alternate Author |
Aeronautical Systems Division (U.S.)
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Forest Products Laboratory (U.S.)
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