The short time tension and compression load carrying properties of four aircraft type sheet materials (namely: 2024 T8l aluminum, 17-7PH (TH 1050) stainless steel, annealed N-155 (Multimet) alloy, and annealed 6A1-VV titanium alloy)were evaluated. Tensile and compressive strength properties were measured at strain rates ranging from 0.00001 to 0.1 in./in./second. Test temperatures up to 2000°F and hold times at temperature of 2 and 30 minute were investigated. The compressive creep properties (for times up to 15 minutes) were also evaluated and methods are shown for use of these data to define the behavior of columns subjected to high temperatures and stresses.nChanges in testing speed produced major differences in the tensile and compressive strengths, particularly at the elevated temperatures. It was also demonstrated that time-dependent deformation rates at high stresses and high temperatures are very rapid. Large amounts of plastic strain can occur even when the time involved is of the order of one second or less.
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