The influence of impact velocity on the tensile characteristics of some aircraft metals and alloys

This report deals principally with the results of tension tests on sixteen metals and alloys, most of which are employed extensively in aircraft construction. The tension characteristics are discussed for static conditions and rates of deformation up to about 150 feed per second.

As a result of these tests, it has been shown that Dowmetal M and 18-percent chromium - 8 percent nickel stainless steel are adversely affected by an increasing rate of deformation. The other materials tested exhibit changes in yield stress, ultimate strength, and other tensile properties.