Structural Testing Of Homebuilt Aircraft
Manhattan Dr. reaches a huge value of some 0.12 or
questions, will nevertheless tell the Tempe, AZ 85282 12%. This value of the strain is so far
builder a great deal about the out to the right it does not even show
strength and the structural integrity in Figure 1. Similar behavior can be
of his aircraft. It will also contribue straight lines). Twice the stress, twice observed on a tensile specimen of a
to his peace of mind. the strain. The behavior of the certified spruce (yield point around
Let us start by pausing briefly to stretched aluminum alloy (20 24 -T3), 5.3 ksi, ultimate strength about 9.4
consider a peculiar mechanical prop- spruce, or 4130 steel (not shown) is, ksi), or a low carbon steel, or CrMo
erty of composite materials
annaabi.ee 
